408061720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{2447}}^1$

素因数の和:2848

約数の個数: 64

約数和(自身を含む): 1004659200

約数和(自身を除く): 596597480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 379, 440, 758, 1516, 1895, 2447, 3032, 3790, 4169, 4894, 7580, 8338, 9788, 12235, 15160, 16676, 19576, 20845, 24470, 26917, 33352, 41690, 48940, 53834, 83380, 97880, 107668, 134585, 166760, 215336, 269170, 538340, 927413, 1076680, 1854826, 3709652, 4637065, 7419304, 9274130, 10201543, 18548260, 20403086, 37096520, 40806172, 51007715, 81612344, 102015430, 204030860, 408061720]

約数ペア:

[(1, 408061720), (2, 204030860), (4, 102015430), (5, 81612344), (8, 51007715), (10, 40806172), (11, 37096520), (20, 20403086), (22, 18548260), (40, 10201543), (44, 9274130), (55, 7419304), (88, 4637065), (110, 3709652), (220, 1854826), (379, 1076680), (440, 927413), (758, 538340), (1516, 269170), (1895, 215336), (2447, 166760), (3032, 134585), (3790, 107668), (4169, 97880), (4894, 83380), (7580, 53834), (8338, 48940), (9788, 41690), (12235, 33352), (15160, 26917), (16676, 24470), (19576, 20845)]