221491920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70991}}^1$

素因数の和:71020

約数の個数: 80

約数和(自身を含む): 739452672

約数和(自身を除く): 517960752

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, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 70991, 141982, 212973, 283964, 354955, 425946, 567928, 709910, 851892, 922883, 1064865, 1135856, 1419820, 1703784, 1845766, 2129730, 2768649, 2839640, 3407568, 3691532, 4259460, 4614415, 5537298, 5679280, 7383064, 8518920, 9228830, 11074596, 13843245, 14766128, 17037840, 18457660, 22149192, 27686490, 36915320, 44298384, 55372980, 73830640, 110745960, 221491920]

約数ペア:

[(1, 221491920), (2, 110745960), (3, 73830640), (4, 55372980), (5, 44298384), (6, 36915320), (8, 27686490), (10, 22149192), (12, 18457660), (13, 17037840), (15, 14766128), (16, 13843245), (20, 11074596), (24, 9228830), (26, 8518920), (30, 7383064), (39, 5679280), (40, 5537298), (48, 4614415), (52, 4259460), (60, 3691532), (65, 3407568), (78, 2839640), (80, 2768649), (104, 2129730), (120, 1845766), (130, 1703784), (156, 1419820), (195, 1135856), (208, 1064865), (240, 922883), (260, 851892), (312, 709910), (390, 567928), (520, 425946), (624, 354955), (780, 283964), (1040, 212973), (1560, 141982), (3120, 70991)]