64001980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{14747}}^1$

素因数の和:14794

約数の個数: 48

約数和(自身を含む): 158570496

約数和(自身を除く): 94568516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 14747, 29494, 58988, 73735, 103229, 147470, 206458, 294940, 412916, 457157, 516145, 914314, 1032290, 1828628, 2064580, 2285785, 3200099, 4571570, 6400198, 9143140, 12800396, 16000495, 32000990, 64001980]

約数ペア:

[(1, 64001980), (2, 32000990), (4, 16000495), (5, 12800396), (7, 9143140), (10, 6400198), (14, 4571570), (20, 3200099), (28, 2285785), (31, 2064580), (35, 1828628), (62, 1032290), (70, 914314), (124, 516145), (140, 457157), (155, 412916), (217, 294940), (310, 206458), (434, 147470), (620, 103229), (868, 73735), (1085, 58988), (2170, 29494), (4340, 14747)]