87841720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1279}}^1$

素因数の和:1408

約数の個数: 64

約数和(自身を含む): 211507200

約数和(自身を除く): 123665480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 340, 404, 505, 680, 808, 1010, 1279, 1717, 2020, 2558, 3434, 4040, 5116, 6395, 6868, 8585, 10232, 12790, 13736, 17170, 21743, 25580, 34340, 43486, 51160, 68680, 86972, 108715, 129179, 173944, 217430, 258358, 434860, 516716, 645895, 869720, 1033432, 1291790, 2196043, 2583580, 4392086, 5167160, 8784172, 10980215, 17568344, 21960430, 43920860, 87841720]

約数ペア:

[(1, 87841720), (2, 43920860), (4, 21960430), (5, 17568344), (8, 10980215), (10, 8784172), (17, 5167160), (20, 4392086), (34, 2583580), (40, 2196043), (68, 1291790), (85, 1033432), (101, 869720), (136, 645895), (170, 516716), (202, 434860), (340, 258358), (404, 217430), (505, 173944), (680, 129179), (808, 108715), (1010, 86972), (1279, 68680), (1717, 51160), (2020, 43486), (2558, 34340), (3434, 25580), (4040, 21743), (5116, 17170), (6395, 13736), (6868, 12790), (8585, 10232)]