31789240

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{331}}^1$

素因数の和:370

約数の個数: 80

約数和(自身を含む): 83693880

約数和(自身を除く): 51904640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 331, 343, 392, 490, 662, 686, 980, 1324, 1372, 1655, 1715, 1960, 2317, 2401, 2648, 2744, 3310, 3430, 4634, 4802, 6620, 6860, 9268, 9604, 11585, 12005, 13240, 13720, 16219, 18536, 19208, 23170, 24010, 32438, 46340, 48020, 64876, 81095, 92680, 96040, 113533, 129752, 162190, 227066, 324380, 454132, 567665, 648760, 794731, 908264, 1135330, 1589462, 2270660, 3178924, 3973655, 4541320, 6357848, 7947310, 15894620, 31789240]

約数ペア:

[(1, 31789240), (2, 15894620), (4, 7947310), (5, 6357848), (7, 4541320), (8, 3973655), (10, 3178924), (14, 2270660), (20, 1589462), (28, 1135330), (35, 908264), (40, 794731), (49, 648760), (56, 567665), (70, 454132), (98, 324380), (140, 227066), (196, 162190), (245, 129752), (280, 113533), (331, 96040), (343, 92680), (392, 81095), (490, 64876), (662, 48020), (686, 46340), (980, 32438), (1324, 24010), (1372, 23170), (1655, 19208), (1715, 18536), (1960, 16219), (2317, 13720), (2401, 13240), (2648, 12005), (2744, 11585), (3310, 9604), (3430, 9268), (4634, 6860), (4802, 6620)]