641580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 72

約数和(自身を含む): 1959888

約数和(自身を除く): 1318308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 37, 51, 60, 68, 74, 85, 102, 111, 148, 170, 185, 204, 222, 255, 289, 340, 370, 444, 510, 555, 578, 629, 740, 867, 1020, 1110, 1156, 1258, 1445, 1734, 1887, 2220, 2516, 2890, 3145, 3468, 3774, 4335, 5780, 6290, 7548, 8670, 9435, 10693, 12580, 17340, 18870, 21386, 32079, 37740, 42772, 53465, 64158, 106930, 128316, 160395, 213860, 320790, 641580]

約数ペア:

[(1, 641580), (2, 320790), (3, 213860), (4, 160395), (5, 128316), (6, 106930), (10, 64158), (12, 53465), (15, 42772), (17, 37740), (20, 32079), (30, 21386), (34, 18870), (37, 17340), (51, 12580), (60, 10693), (68, 9435), (74, 8670), (85, 7548), (102, 6290), (111, 5780), (148, 4335), (170, 3774), (185, 3468), (204, 3145), (222, 2890), (255, 2516), (289, 2220), (340, 1887), (370, 1734), (444, 1445), (510, 1258), (555, 1156), (578, 1110), (629, 1020), (740, 867)]