131631640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:545

約数の個数: 96

約数和(自身を含む): 347198400

約数和(自身を除く): 215566760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 239, 245, 280, 281, 392, 478, 490, 562, 956, 980, 1124, 1195, 1405, 1673, 1912, 1960, 1967, 2248, 2390, 2810, 3346, 3934, 4780, 5620, 6692, 7868, 8365, 9560, 9835, 11240, 11711, 13384, 13769, 15736, 16730, 19670, 23422, 27538, 33460, 39340, 46844, 55076, 58555, 66920, 67159, 68845, 78680, 93688, 110152, 117110, 134318, 137690, 234220, 268636, 275380, 335795, 468440, 470113, 537272, 550760, 671590, 940226, 1343180, 1880452, 2350565, 2686360, 3290791, 3760904, 4701130, 6581582, 9402260, 13163164, 16453955, 18804520, 26326328, 32907910, 65815820, 131631640]

約数ペア:

[(1, 131631640), (2, 65815820), (4, 32907910), (5, 26326328), (7, 18804520), (8, 16453955), (10, 13163164), (14, 9402260), (20, 6581582), (28, 4701130), (35, 3760904), (40, 3290791), (49, 2686360), (56, 2350565), (70, 1880452), (98, 1343180), (140, 940226), (196, 671590), (239, 550760), (245, 537272), (280, 470113), (281, 468440), (392, 335795), (478, 275380), (490, 268636), (562, 234220), (956, 137690), (980, 134318), (1124, 117110), (1195, 110152), (1405, 93688), (1673, 78680), (1912, 68845), (1960, 67159), (1967, 66920), (2248, 58555), (2390, 55076), (2810, 46844), (3346, 39340), (3934, 33460), (4780, 27538), (5620, 23422), (6692, 19670), (7868, 16730), (8365, 15736), (9560, 13769), (9835, 13384), (11240, 11711)]