31841680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1801}}^1$

素因数の和:1844

約数の個数: 80

約数和(自身を含む): 84463344

約数和(自身を除く): 52621664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1768, 1801, 2210, 3536, 3602, 4420, 7204, 8840, 9005, 14408, 17680, 18010, 23413, 28816, 30617, 36020, 46826, 61234, 72040, 93652, 117065, 122468, 144080, 153085, 187304, 234130, 244936, 306170, 374608, 398021, 468260, 489872, 612340, 796042, 936520, 1224680, 1592084, 1873040, 1990105, 2449360, 3184168, 3980210, 6368336, 7960420, 15920840, 31841680]

約数ペア:

[(1, 31841680), (2, 15920840), (4, 7960420), (5, 6368336), (8, 3980210), (10, 3184168), (13, 2449360), (16, 1990105), (17, 1873040), (20, 1592084), (26, 1224680), (34, 936520), (40, 796042), (52, 612340), (65, 489872), (68, 468260), (80, 398021), (85, 374608), (104, 306170), (130, 244936), (136, 234130), (170, 187304), (208, 153085), (221, 144080), (260, 122468), (272, 117065), (340, 93652), (442, 72040), (520, 61234), (680, 46826), (884, 36020), (1040, 30617), (1105, 28816), (1360, 23413), (1768, 18010), (1801, 17680), (2210, 14408), (3536, 9005), (3602, 8840), (4420, 7204)]