315870625

素因数分解:

$5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 496641024

約数和(自身を除く): 180770399

約数列:

[1, 5, 7, 17, 25, 31, 35, 85, 119, 125, 137, 155, 175, 217, 425, 527, 595, 625, 685, 775, 875, 959, 1085, 2125, 2329, 2635, 2975, 3425, 3689, 3875, 4247, 4375, 4795, 5425, 10625, 11645, 13175, 14875, 16303, 17125, 18445, 19375, 21235, 23975, 27125, 29729, 58225, 65875, 72199, 74375, 81515, 85625, 92225, 106175, 119875, 135625, 148645, 291125, 329375, 360995, 407575, 461125, 505393, 530875, 599375, 743225, 1455625, 1804975, 2037875, 2305625, 2526965, 2654375, 3716125, 9024875, 10189375, 12634825, 18580625, 45124375, 63174125, 315870625]

約数ペア:

[(1, 315870625), (5, 63174125), (7, 45124375), (17, 18580625), (25, 12634825), (31, 10189375), (35, 9024875), (85, 3716125), (119, 2654375), (125, 2526965), (137, 2305625), (155, 2037875), (175, 1804975), (217, 1455625), (425, 743225), (527, 599375), (595, 530875), (625, 505393), (685, 461125), (775, 407575), (875, 360995), (959, 329375), (1085, 291125), (2125, 148645), (2329, 135625), (2635, 119875), (2975, 106175), (3425, 92225), (3689, 85625), (3875, 81515), (4247, 74375), (4375, 72199), (4795, 65875), (5425, 58225), (10625, 29729), (11645, 27125), (13175, 23975), (14875, 21235), (16303, 19375), (17125, 18445)]