85965940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 194957280

約数和(自身を除く): 108991340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 107, 139, 170, 214, 278, 289, 340, 428, 535, 556, 578, 695, 1070, 1156, 1390, 1445, 1819, 2140, 2363, 2780, 2890, 3638, 4726, 5780, 7276, 9095, 9452, 11815, 14873, 18190, 23630, 29746, 30923, 36380, 40171, 47260, 59492, 61846, 74365, 80342, 123692, 148730, 154615, 160684, 200855, 252841, 297460, 309230, 401710, 505682, 618460, 803420, 1011364, 1264205, 2528410, 4298297, 5056820, 8596594, 17193188, 21491485, 42982970, 85965940]

約数ペア:

[(1, 85965940), (2, 42982970), (4, 21491485), (5, 17193188), (10, 8596594), (17, 5056820), (20, 4298297), (34, 2528410), (68, 1264205), (85, 1011364), (107, 803420), (139, 618460), (170, 505682), (214, 401710), (278, 309230), (289, 297460), (340, 252841), (428, 200855), (535, 160684), (556, 154615), (578, 148730), (695, 123692), (1070, 80342), (1156, 74365), (1390, 61846), (1445, 59492), (1819, 47260), (2140, 40171), (2363, 36380), (2780, 30923), (2890, 29746), (3638, 23630), (4726, 18190), (5780, 14873), (7276, 11815), (9095, 9452)]