636420040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{1381}}^1$

素因数の和:1714

約数の個数: 64

約数和(自身を含む): 1473156720

約数和(自身を除く): 836736680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 281, 328, 410, 562, 820, 1124, 1381, 1405, 1640, 2248, 2762, 2810, 5524, 5620, 6905, 11048, 11240, 11521, 13810, 23042, 27620, 46084, 55240, 56621, 57605, 92168, 113242, 115210, 226484, 230420, 283105, 388061, 452968, 460840, 566210, 776122, 1132420, 1552244, 1940305, 2264840, 3104488, 3880610, 7761220, 15522440, 15910501, 31821002, 63642004, 79552505, 127284008, 159105010, 318210020, 636420040]

約数ペア:

[(1, 636420040), (2, 318210020), (4, 159105010), (5, 127284008), (8, 79552505), (10, 63642004), (20, 31821002), (40, 15910501), (41, 15522440), (82, 7761220), (164, 3880610), (205, 3104488), (281, 2264840), (328, 1940305), (410, 1552244), (562, 1132420), (820, 776122), (1124, 566210), (1381, 460840), (1405, 452968), (1640, 388061), (2248, 283105), (2762, 230420), (2810, 226484), (5524, 115210), (5620, 113242), (6905, 92168), (11048, 57605), (11240, 56621), (11521, 55240), (13810, 46084), (23042, 27620)]