642237960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{571}}^1$

素因数の和:708

約数の個数: 256

約数和(自身を含む): 2398556160

約数和(自身を除く): 1756318200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 103, 104, 105, 120, 130, 140, 156, 168, 182, 195, 206, 210, 260, 273, 280, 309, 312, 364, 390, 412, 420, 455, 515, 520, 546, 571, 618, 721, 728, 780, 824, 840, 910, 1030, 1092, 1142, 1236, 1339, 1365, 1442, 1545, 1560, 1713, 1820, 2060, 2163, 2184, 2284, 2472, 2678, 2730, 2855, 2884, 3090, 3426, 3605, 3640, 3997, 4017, 4120, 4326, 4568, 5356, 5460, 5710, 5768, 6180, 6695, 6852, 7210, 7423, 7994, 8034, 8565, 8652, 9373, 10712, 10815, 10920, 11420, 11991, 12360, 13390, 13704, 14420, 14846, 15988, 16068, 17130, 17304, 18746, 19985, 20085, 21630, 22269, 22840, 23982, 26780, 28119, 28840, 29692, 31976, 32136, 34260, 37115, 37492, 39970, 40170, 43260, 44538, 46865, 47964, 51961, 53560, 56238, 58813, 59384, 59955, 68520, 74230, 74984, 79940, 80340, 86520, 89076, 93730, 95928, 103922, 111345, 112476, 117626, 119910, 140595, 148460, 155883, 159880, 160680, 176439, 178152, 187460, 207844, 222690, 224952, 235252, 239820, 259805, 281190, 294065, 296920, 311766, 352878, 374920, 411691, 415688, 445380, 470504, 479640, 519610, 562380, 588130, 623532, 705756, 764569, 779415, 823382, 882195, 890760, 1039220, 1124760, 1176260, 1235073, 1247064, 1411512, 1529138, 1558830, 1646764, 1764390, 2058455, 2078440, 2293707, 2352520, 2470146, 3058276, 3117660, 3293528, 3528780, 3822845, 4116910, 4587414, 4940292, 5351983, 6116552, 6175365, 6235320, 7057560, 7645690, 8233820, 9174828, 9880584, 10703966, 11468535, 12350730, 15291380, 16055949, 16467640, 18349656, 21407932, 22937070, 24701460, 26759915, 30582760, 32111898, 42815864, 45874140, 49402920, 53519830, 64223796, 80279745, 91748280, 107039660, 128447592, 160559490, 214079320, 321118980, 642237960]

約数ペア:

[(1, 642237960), (2, 321118980), (3, 214079320), (4, 160559490), (5, 128447592), (6, 107039660), (7, 91748280), (8, 80279745), (10, 64223796), (12, 53519830), (13, 49402920), (14, 45874140), (15, 42815864), (20, 32111898), (21, 30582760), (24, 26759915), (26, 24701460), (28, 22937070), (30, 21407932), (35, 18349656), (39, 16467640), (40, 16055949), (42, 15291380), (52, 12350730), (56, 11468535), (60, 10703966), (65, 9880584), (70, 9174828), (78, 8233820), (84, 7645690), (91, 7057560), (103, 6235320), (104, 6175365), (105, 6116552), (120, 5351983), (130, 4940292), (140, 4587414), (156, 4116910), (168, 3822845), (182, 3528780), (195, 3293528), (206, 3117660), (210, 3058276), (260, 2470146), (273, 2352520), (280, 2293707), (309, 2078440), (312, 2058455), (364, 1764390), (390, 1646764), (412, 1558830), (420, 1529138), (455, 1411512), (515, 1247064), (520, 1235073), (546, 1176260), (571, 1124760), (618, 1039220), (721, 890760), (728, 882195), (780, 823382), (824, 779415), (840, 764569), (910, 705756), (1030, 623532), (1092, 588130), (1142, 562380), (1236, 519610), (1339, 479640), (1365, 470504), (1442, 445380), (1545, 415688), (1560, 411691), (1713, 374920), (1820, 352878), (2060, 311766), (2163, 296920), (2184, 294065), (2284, 281190), (2472, 259805), (2678, 239820), (2730, 235252), (2855, 224952), (2884, 222690), (3090, 207844), (3426, 187460), (3605, 178152), (3640, 176439), (3997, 160680), (4017, 159880), (4120, 155883), (4326, 148460), (4568, 140595), (5356, 119910), (5460, 117626), (5710, 112476), (5768, 111345), (6180, 103922), (6695, 95928), (6852, 93730), (7210, 89076), (7423, 86520), (7994, 80340), (8034, 79940), (8565, 74984), (8652, 74230), (9373, 68520), (10712, 59955), (10815, 59384), (10920, 58813), (11420, 56238), (11991, 53560), (12360, 51961), (13390, 47964), (13704, 46865), (14420, 44538), (14846, 43260), (15988, 40170), (16068, 39970), (17130, 37492), (17304, 37115), (18746, 34260), (19985, 32136), (20085, 31976), (21630, 29692), (22269, 28840), (22840, 28119), (23982, 26780)]