821717520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2557}}^1$

素因数の和:2689

約数の個数: 160

約数和(自身を含む): 2770989312

約数和(自身を除く): 1949271792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 103, 104, 120, 130, 156, 195, 206, 208, 240, 260, 309, 312, 390, 412, 515, 520, 618, 624, 780, 824, 1030, 1040, 1236, 1339, 1545, 1560, 1648, 2060, 2472, 2557, 2678, 3090, 3120, 4017, 4120, 4944, 5114, 5356, 6180, 6695, 7671, 8034, 8240, 10228, 10712, 12360, 12785, 13390, 15342, 16068, 20085, 20456, 21424, 24720, 25570, 26780, 30684, 32136, 33241, 38355, 40170, 40912, 51140, 53560, 61368, 64272, 66482, 76710, 80340, 99723, 102280, 107120, 122736, 132964, 153420, 160680, 166205, 199446, 204560, 263371, 265928, 306840, 321360, 332410, 398892, 498615, 526742, 531856, 613680, 664820, 790113, 797784, 997230, 1053484, 1316855, 1329640, 1580226, 1595568, 1994460, 2106968, 2633710, 2659280, 3160452, 3423823, 3950565, 3988920, 4213936, 5267420, 6320904, 6847646, 7901130, 7977840, 10271469, 10534840, 12641808, 13695292, 15802260, 17119115, 20542938, 21069680, 27390584, 31604520, 34238230, 41085876, 51357345, 54781168, 63209040, 68476460, 82171752, 102714690, 136952920, 164343504, 205429380, 273905840, 410858760, 821717520]

約数ペア:

[(1, 821717520), (2, 410858760), (3, 273905840), (4, 205429380), (5, 164343504), (6, 136952920), (8, 102714690), (10, 82171752), (12, 68476460), (13, 63209040), (15, 54781168), (16, 51357345), (20, 41085876), (24, 34238230), (26, 31604520), (30, 27390584), (39, 21069680), (40, 20542938), (48, 17119115), (52, 15802260), (60, 13695292), (65, 12641808), (78, 10534840), (80, 10271469), (103, 7977840), (104, 7901130), (120, 6847646), (130, 6320904), (156, 5267420), (195, 4213936), (206, 3988920), (208, 3950565), (240, 3423823), (260, 3160452), (309, 2659280), (312, 2633710), (390, 2106968), (412, 1994460), (515, 1595568), (520, 1580226), (618, 1329640), (624, 1316855), (780, 1053484), (824, 997230), (1030, 797784), (1040, 790113), (1236, 664820), (1339, 613680), (1545, 531856), (1560, 526742), (1648, 498615), (2060, 398892), (2472, 332410), (2557, 321360), (2678, 306840), (3090, 265928), (3120, 263371), (4017, 204560), (4120, 199446), (4944, 166205), (5114, 160680), (5356, 153420), (6180, 132964), (6695, 122736), (7671, 107120), (8034, 102280), (8240, 99723), (10228, 80340), (10712, 76710), (12360, 66482), (12785, 64272), (13390, 61368), (15342, 53560), (16068, 51140), (20085, 40912), (20456, 40170), (21424, 38355), (24720, 33241), (25570, 32136), (26780, 30684)]