31141320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:435

約数の個数: 128

約数和(自身を含む): 107965440

約数和(自身を除く): 76824120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 131, 140, 168, 210, 262, 280, 283, 393, 420, 524, 566, 655, 786, 840, 849, 917, 1048, 1132, 1310, 1415, 1572, 1698, 1834, 1965, 1981, 2264, 2620, 2751, 2830, 3144, 3396, 3668, 3930, 3962, 4245, 4585, 5240, 5502, 5660, 5943, 6792, 7336, 7860, 7924, 8490, 9170, 9905, 11004, 11320, 11886, 13755, 15720, 15848, 16980, 18340, 19810, 22008, 23772, 27510, 29715, 33960, 36680, 37073, 39620, 47544, 55020, 59430, 74146, 79240, 110040, 111219, 118860, 148292, 185365, 222438, 237720, 259511, 296584, 370730, 444876, 519022, 556095, 741460, 778533, 889752, 1038044, 1112190, 1297555, 1482920, 1557066, 2076088, 2224380, 2595110, 3114132, 3892665, 4448760, 5190220, 6228264, 7785330, 10380440, 15570660, 31141320]

約数ペア:

[(1, 31141320), (2, 15570660), (3, 10380440), (4, 7785330), (5, 6228264), (6, 5190220), (7, 4448760), (8, 3892665), (10, 3114132), (12, 2595110), (14, 2224380), (15, 2076088), (20, 1557066), (21, 1482920), (24, 1297555), (28, 1112190), (30, 1038044), (35, 889752), (40, 778533), (42, 741460), (56, 556095), (60, 519022), (70, 444876), (84, 370730), (105, 296584), (120, 259511), (131, 237720), (140, 222438), (168, 185365), (210, 148292), (262, 118860), (280, 111219), (283, 110040), (393, 79240), (420, 74146), (524, 59430), (566, 55020), (655, 47544), (786, 39620), (840, 37073), (849, 36680), (917, 33960), (1048, 29715), (1132, 27510), (1310, 23772), (1415, 22008), (1572, 19810), (1698, 18340), (1834, 16980), (1965, 15848), (1981, 15720), (2264, 13755), (2620, 11886), (2751, 11320), (2830, 11004), (3144, 9905), (3396, 9170), (3668, 8490), (3930, 7924), (3962, 7860), (4245, 7336), (4585, 6792), (5240, 5943), (5502, 5660)]