71872880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:514

約数の個数: 80

約数和(自身を含む): 175298304

約数和(自身を除く): 103425424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 248, 292, 310, 365, 397, 496, 584, 620, 730, 794, 1168, 1240, 1460, 1588, 1985, 2263, 2480, 2920, 3176, 3970, 4526, 5840, 6352, 7940, 9052, 11315, 12307, 15880, 18104, 22630, 24614, 28981, 31760, 36208, 45260, 49228, 57962, 61535, 90520, 98456, 115924, 123070, 144905, 181040, 196912, 231848, 246140, 289810, 463696, 492280, 579620, 898411, 984560, 1159240, 1796822, 2318480, 3593644, 4492055, 7187288, 8984110, 14374576, 17968220, 35936440, 71872880]

約数ペア:

[(1, 71872880), (2, 35936440), (4, 17968220), (5, 14374576), (8, 8984110), (10, 7187288), (16, 4492055), (20, 3593644), (31, 2318480), (40, 1796822), (62, 1159240), (73, 984560), (80, 898411), (124, 579620), (146, 492280), (155, 463696), (248, 289810), (292, 246140), (310, 231848), (365, 196912), (397, 181040), (496, 144905), (584, 123070), (620, 115924), (730, 98456), (794, 90520), (1168, 61535), (1240, 57962), (1460, 49228), (1588, 45260), (1985, 36208), (2263, 31760), (2480, 28981), (2920, 24614), (3176, 22630), (3970, 18104), (4526, 15880), (5840, 12307), (6352, 11315), (7940, 9052)]