855440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:84

約数の個数: 60

約数和(自身を含む): 2169876

約数和(自身を除く): 1314436

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 37, 40, 68, 74, 80, 85, 136, 148, 170, 185, 272, 289, 296, 340, 370, 578, 592, 629, 680, 740, 1156, 1258, 1360, 1445, 1480, 2312, 2516, 2890, 2960, 3145, 4624, 5032, 5780, 6290, 10064, 10693, 11560, 12580, 21386, 23120, 25160, 42772, 50320, 53465, 85544, 106930, 171088, 213860, 427720, 855440]

約数ペア:

[(1, 855440), (2, 427720), (4, 213860), (5, 171088), (8, 106930), (10, 85544), (16, 53465), (17, 50320), (20, 42772), (34, 25160), (37, 23120), (40, 21386), (68, 12580), (74, 11560), (80, 10693), (85, 10064), (136, 6290), (148, 5780), (170, 5032), (185, 4624), (272, 3145), (289, 2960), (296, 2890), (340, 2516), (370, 2312), (578, 1480), (592, 1445), (629, 1360), (680, 1258), (740, 1156)]