145207720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16729}}^1$

素因数の和:16778

約数の個数: 64

約数和(自身を含む): 385459200

約数和(自身を除く): 240251480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 16729, 33458, 66916, 83645, 117103, 133832, 167290, 234206, 334580, 468412, 518599, 585515, 669160, 936824, 1037198, 1171030, 2074396, 2342060, 2592995, 3630193, 4148792, 4684120, 5185990, 7260386, 10371980, 14520772, 18150965, 20743960, 29041544, 36301930, 72603860, 145207720]

約数ペア:

[(1, 145207720), (2, 72603860), (4, 36301930), (5, 29041544), (7, 20743960), (8, 18150965), (10, 14520772), (14, 10371980), (20, 7260386), (28, 5185990), (31, 4684120), (35, 4148792), (40, 3630193), (56, 2592995), (62, 2342060), (70, 2074396), (124, 1171030), (140, 1037198), (155, 936824), (217, 669160), (248, 585515), (280, 518599), (310, 468412), (434, 334580), (620, 234206), (868, 167290), (1085, 133832), (1240, 117103), (1736, 83645), (2170, 66916), (4340, 33458), (8680, 16729)]