18705960

素因数分解:

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

素因数の和:608

約数の個数: 192

約数和(自身を含む): 74954880

約数和(自身を除く): 56248920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 360, 364, 390, 420, 455, 468, 504, 520, 546, 571, 585, 630, 728, 780, 819, 840, 910, 936, 1092, 1142, 1170, 1260, 1365, 1560, 1638, 1713, 1820, 2184, 2284, 2340, 2520, 2730, 2855, 3276, 3426, 3640, 3997, 4095, 4568, 4680, 5139, 5460, 5710, 6552, 6852, 7423, 7994, 8190, 8565, 10278, 10920, 11420, 11991, 13704, 14846, 15988, 16380, 17130, 19985, 20556, 22269, 22840, 23982, 25695, 29692, 31976, 32760, 34260, 35973, 37115, 39970, 41112, 44538, 47964, 51390, 51961, 59384, 59955, 66807, 68520, 71946, 74230, 79940, 89076, 95928, 102780, 103922, 111345, 119910, 133614, 143892, 148460, 155883, 159880, 178152, 179865, 205560, 207844, 222690, 239820, 259805, 267228, 287784, 296920, 311766, 334035, 359730, 415688, 445380, 467649, 479640, 519610, 534456, 623532, 668070, 719460, 779415, 890760, 935298, 1039220, 1247064, 1336140, 1438920, 1558830, 1870596, 2078440, 2338245, 2672280, 3117660, 3741192, 4676490, 6235320, 9352980, 18705960]

約数ペア:

[(1, 18705960), (2, 9352980), (3, 6235320), (4, 4676490), (5, 3741192), (6, 3117660), (7, 2672280), (8, 2338245), (9, 2078440), (10, 1870596), (12, 1558830), (13, 1438920), (14, 1336140), (15, 1247064), (18, 1039220), (20, 935298), (21, 890760), (24, 779415), (26, 719460), (28, 668070), (30, 623532), (35, 534456), (36, 519610), (39, 479640), (40, 467649), (42, 445380), (45, 415688), (52, 359730), (56, 334035), (60, 311766), (63, 296920), (65, 287784), (70, 267228), (72, 259805), (78, 239820), (84, 222690), (90, 207844), (91, 205560), (104, 179865), (105, 178152), (117, 159880), (120, 155883), (126, 148460), (130, 143892), (140, 133614), (156, 119910), (168, 111345), (180, 103922), (182, 102780), (195, 95928), (210, 89076), (234, 79940), (252, 74230), (260, 71946), (273, 68520), (280, 66807), (312, 59955), (315, 59384), (360, 51961), (364, 51390), (390, 47964), (420, 44538), (455, 41112), (468, 39970), (504, 37115), (520, 35973), (546, 34260), (571, 32760), (585, 31976), (630, 29692), (728, 25695), (780, 23982), (819, 22840), (840, 22269), (910, 20556), (936, 19985), (1092, 17130), (1142, 16380), (1170, 15988), (1260, 14846), (1365, 13704), (1560, 11991), (1638, 11420), (1713, 10920), (1820, 10278), (2184, 8565), (2284, 8190), (2340, 7994), (2520, 7423), (2730, 6852), (2855, 6552), (3276, 5710), (3426, 5460), (3640, 5139), (3997, 4680), (4095, 4568)]