721869660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211073}}^1$

素因数の和:211107

約数の個数: 72

約数和(自身を含む): 2304928080

約数和(自身を除く): 1583058420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 211073, 422146, 633219, 844292, 1055365, 1266438, 1899657, 2110730, 2532876, 3166095, 3799314, 4010387, 4221460, 6332190, 7598628, 8020774, 9498285, 12031161, 12664380, 16041548, 18996570, 20051935, 24062322, 36093483, 37993140, 40103870, 48124644, 60155805, 72186966, 80207740, 120311610, 144373932, 180467415, 240623220, 360934830, 721869660]

約数ペア:

[(1, 721869660), (2, 360934830), (3, 240623220), (4, 180467415), (5, 144373932), (6, 120311610), (9, 80207740), (10, 72186966), (12, 60155805), (15, 48124644), (18, 40103870), (19, 37993140), (20, 36093483), (30, 24062322), (36, 20051935), (38, 18996570), (45, 16041548), (57, 12664380), (60, 12031161), (76, 9498285), (90, 8020774), (95, 7598628), (114, 6332190), (171, 4221460), (180, 4010387), (190, 3799314), (228, 3166095), (285, 2532876), (342, 2110730), (380, 1899657), (570, 1266438), (684, 1055365), (855, 844292), (1140, 633219), (1710, 422146), (3420, 211073)]