647564425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2137}}^1$

素因数の和:2218

約数の個数: 48

約数和(自身を含む): 916227072

約数和(自身を除く): 268662647

約数列:

[1, 5, 17, 23, 25, 31, 85, 115, 155, 391, 425, 527, 575, 713, 775, 1955, 2137, 2635, 3565, 9775, 10685, 12121, 13175, 17825, 36329, 49151, 53425, 60605, 66247, 181645, 245755, 303025, 331235, 835567, 908225, 1126199, 1228775, 1523681, 1656175, 4177835, 5630995, 7618405, 20889175, 25902577, 28154975, 38092025, 129512885, 647564425]

約数ペア:

[(1, 647564425), (5, 129512885), (17, 38092025), (23, 28154975), (25, 25902577), (31, 20889175), (85, 7618405), (115, 5630995), (155, 4177835), (391, 1656175), (425, 1523681), (527, 1228775), (575, 1126199), (713, 908225), (775, 835567), (1955, 331235), (2137, 303025), (2635, 245755), (3565, 181645), (9775, 66247), (10685, 60605), (12121, 53425), (13175, 49151), (17825, 36329)]