68664040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 159096960

約数和(自身を除く): 90432920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 107, 122, 214, 244, 263, 305, 428, 488, 526, 535, 610, 856, 1052, 1070, 1220, 1315, 2104, 2140, 2440, 2630, 4280, 5260, 6527, 10520, 13054, 16043, 26108, 28141, 32086, 32635, 52216, 56282, 64172, 65270, 80215, 112564, 128344, 130540, 140705, 160430, 225128, 261080, 281410, 320860, 562820, 641720, 1125640, 1716601, 3433202, 6866404, 8583005, 13732808, 17166010, 34332020, 68664040]

約数ペア:

[(1, 68664040), (2, 34332020), (4, 17166010), (5, 13732808), (8, 8583005), (10, 6866404), (20, 3433202), (40, 1716601), (61, 1125640), (107, 641720), (122, 562820), (214, 320860), (244, 281410), (263, 261080), (305, 225128), (428, 160430), (488, 140705), (526, 130540), (535, 128344), (610, 112564), (856, 80215), (1052, 65270), (1070, 64172), (1220, 56282), (1315, 52216), (2104, 32635), (2140, 32086), (2440, 28141), (2630, 26108), (4280, 16043), (5260, 13054), (6527, 10520)]