648440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:96

約数の個数: 64

約数和(自身を含む): 1663200

約数和(自身を除く): 1014760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 43, 52, 58, 65, 86, 104, 116, 130, 145, 172, 215, 232, 260, 290, 344, 377, 430, 520, 559, 580, 754, 860, 1118, 1160, 1247, 1508, 1720, 1885, 2236, 2494, 2795, 3016, 3770, 4472, 4988, 5590, 6235, 7540, 9976, 11180, 12470, 15080, 16211, 22360, 24940, 32422, 49880, 64844, 81055, 129688, 162110, 324220, 648440]

約数ペア:

[(1, 648440), (2, 324220), (4, 162110), (5, 129688), (8, 81055), (10, 64844), (13, 49880), (20, 32422), (26, 24940), (29, 22360), (40, 16211), (43, 15080), (52, 12470), (58, 11180), (65, 9976), (86, 7540), (104, 6235), (116, 5590), (130, 4988), (145, 4472), (172, 3770), (215, 3016), (232, 2795), (260, 2494), (290, 2236), (344, 1885), (377, 1720), (430, 1508), (520, 1247), (559, 1160), (580, 1118), (754, 860)]