20642856

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{607}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 56179200

約数和(自身を除く): 35536344

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 109, 156, 218, 312, 327, 436, 607, 654, 872, 1214, 1308, 1417, 1821, 2428, 2616, 2834, 3642, 4251, 4856, 5668, 7284, 7891, 8502, 11336, 14568, 15782, 17004, 23673, 31564, 34008, 47346, 63128, 66163, 94692, 132326, 189384, 198489, 264652, 396978, 529304, 793956, 860119, 1587912, 1720238, 2580357, 3440476, 5160714, 6880952, 10321428, 20642856]

約数ペア:

[(1, 20642856), (2, 10321428), (3, 6880952), (4, 5160714), (6, 3440476), (8, 2580357), (12, 1720238), (13, 1587912), (24, 860119), (26, 793956), (39, 529304), (52, 396978), (78, 264652), (104, 198489), (109, 189384), (156, 132326), (218, 94692), (312, 66163), (327, 63128), (436, 47346), (607, 34008), (654, 31564), (872, 23673), (1214, 17004), (1308, 15782), (1417, 14568), (1821, 11336), (2428, 8502), (2616, 7891), (2834, 7284), (3642, 5668), (4251, 4856)]