405460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 987840

約数和(自身を除く): 582380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 97, 110, 190, 194, 209, 220, 380, 388, 418, 485, 836, 970, 1045, 1067, 1843, 1940, 2090, 2134, 3686, 4180, 4268, 5335, 7372, 9215, 10670, 18430, 20273, 21340, 36860, 40546, 81092, 101365, 202730, 405460]

約数ペア:

[(1, 405460), (2, 202730), (4, 101365), (5, 81092), (10, 40546), (11, 36860), (19, 21340), (20, 20273), (22, 18430), (38, 10670), (44, 9215), (55, 7372), (76, 5335), (95, 4268), (97, 4180), (110, 3686), (190, 2134), (194, 2090), (209, 1940), (220, 1843), (380, 1067), (388, 1045), (418, 970), (485, 836)]