149811220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{18587}}^1$

素因数の和:18640

約数の個数: 48

約数和(自身を含む): 349751808

約数和(自身を除く): 199940588

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 18587, 37174, 74348, 92935, 185870, 241631, 371740, 483262, 576197, 966524, 1152394, 1208155, 2304788, 2416310, 2880985, 4832620, 5761970, 7490561, 11523940, 14981122, 29962244, 37452805, 74905610, 149811220]

約数ペア:

[(1, 149811220), (2, 74905610), (4, 37452805), (5, 29962244), (10, 14981122), (13, 11523940), (20, 7490561), (26, 5761970), (31, 4832620), (52, 2880985), (62, 2416310), (65, 2304788), (124, 1208155), (130, 1152394), (155, 966524), (260, 576197), (310, 483262), (403, 371740), (620, 241631), (806, 185870), (1612, 92935), (2015, 74348), (4030, 37174), (8060, 18587)]