31465620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5639}}^1$

素因数の和:5685

約数の個数: 72

約数和(自身を含む): 98542080

約数和(自身を除く): 67076460

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, 5639, 11278, 16917, 22556, 28195, 33834, 50751, 56390, 67668, 84585, 101502, 112780, 169170, 174809, 203004, 253755, 338340, 349618, 507510, 524427, 699236, 874045, 1015020, 1048854, 1573281, 1748090, 2097708, 2622135, 3146562, 3496180, 5244270, 6293124, 7866405, 10488540, 15732810, 31465620]

約数ペア:

[(1, 31465620), (2, 15732810), (3, 10488540), (4, 7866405), (5, 6293124), (6, 5244270), (9, 3496180), (10, 3146562), (12, 2622135), (15, 2097708), (18, 1748090), (20, 1573281), (30, 1048854), (31, 1015020), (36, 874045), (45, 699236), (60, 524427), (62, 507510), (90, 349618), (93, 338340), (124, 253755), (155, 203004), (180, 174809), (186, 169170), (279, 112780), (310, 101502), (372, 84585), (465, 67668), (558, 56390), (620, 50751), (930, 33834), (1116, 28195), (1395, 22556), (1860, 16917), (2790, 11278), (5580, 5639)]