91405980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16381}}^1$

素因数の和:16427

約数の個数: 72

約数和(自身を含む): 286226304

約数和(自身を除く): 194820324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 16381, 32762, 49143, 65524, 81905, 98286, 147429, 163810, 196572, 245715, 294858, 327620, 491430, 507811, 589716, 737145, 982860, 1015622, 1474290, 1523433, 2031244, 2539055, 2948580, 3046866, 4570299, 5078110, 6093732, 7617165, 9140598, 10156220, 15234330, 18281196, 22851495, 30468660, 45702990, 91405980]

約数ペア:

[(1, 91405980), (2, 45702990), (3, 30468660), (4, 22851495), (5, 18281196), (6, 15234330), (9, 10156220), (10, 9140598), (12, 7617165), (15, 6093732), (18, 5078110), (20, 4570299), (30, 3046866), (31, 2948580), (36, 2539055), (45, 2031244), (60, 1523433), (62, 1474290), (90, 1015622), (93, 982860), (124, 737145), (155, 589716), (180, 507811), (186, 491430), (279, 327620), (310, 294858), (372, 245715), (465, 196572), (558, 163810), (620, 147429), (930, 98286), (1116, 81905), (1395, 65524), (1860, 49143), (2790, 32762), (5580, 16381)]