26431220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 58060800

約数和(自身を除く): 31629580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 356, 445, 479, 620, 890, 958, 1780, 1916, 2395, 2759, 4790, 5518, 9580, 11036, 13795, 14849, 27590, 29698, 42631, 55180, 59396, 74245, 85262, 148490, 170524, 213155, 296980, 426310, 852620, 1321561, 2643122, 5286244, 6607805, 13215610, 26431220]

約数ペア:

[(1, 26431220), (2, 13215610), (4, 6607805), (5, 5286244), (10, 2643122), (20, 1321561), (31, 852620), (62, 426310), (89, 296980), (124, 213155), (155, 170524), (178, 148490), (310, 85262), (356, 74245), (445, 59396), (479, 55180), (620, 42631), (890, 29698), (958, 27590), (1780, 14849), (1916, 13795), (2395, 11036), (2759, 9580), (4790, 5518)]