20056520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{577}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 49939200

約数和(自身を除く): 29882680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 577, 632, 790, 869, 1154, 1580, 1738, 2308, 2885, 3160, 3476, 4345, 4616, 5770, 6347, 6952, 8690, 11540, 12694, 17380, 23080, 25388, 31735, 34760, 45583, 50776, 63470, 91166, 126940, 182332, 227915, 253880, 364664, 455830, 501413, 911660, 1002826, 1823320, 2005652, 2507065, 4011304, 5014130, 10028260, 20056520]

約数ペア:

[(1, 20056520), (2, 10028260), (4, 5014130), (5, 4011304), (8, 2507065), (10, 2005652), (11, 1823320), (20, 1002826), (22, 911660), (40, 501413), (44, 455830), (55, 364664), (79, 253880), (88, 227915), (110, 182332), (158, 126940), (220, 91166), (316, 63470), (395, 50776), (440, 45583), (577, 34760), (632, 31735), (790, 25388), (869, 23080), (1154, 17380), (1580, 12694), (1738, 11540), (2308, 8690), (2885, 6952), (3160, 6347), (3476, 5770), (4345, 4616)]