78823980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2939}}^1$

素因数の和:3103

約数の個数: 72

約数和(自身を含む): 240786000

約数和(自身を除く): 161962020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 894, 1341, 1490, 1788, 2235, 2682, 2939, 2980, 4470, 5364, 5878, 6705, 8817, 8940, 11756, 13410, 14695, 17634, 26451, 26820, 29390, 35268, 44085, 52902, 58780, 88170, 105804, 132255, 176340, 264510, 437911, 529020, 875822, 1313733, 1751644, 2189555, 2627466, 3941199, 4379110, 5254932, 6568665, 7882398, 8758220, 13137330, 15764796, 19705995, 26274660, 39411990, 78823980]

約数ペア:

[(1, 78823980), (2, 39411990), (3, 26274660), (4, 19705995), (5, 15764796), (6, 13137330), (9, 8758220), (10, 7882398), (12, 6568665), (15, 5254932), (18, 4379110), (20, 3941199), (30, 2627466), (36, 2189555), (45, 1751644), (60, 1313733), (90, 875822), (149, 529020), (180, 437911), (298, 264510), (447, 176340), (596, 132255), (745, 105804), (894, 88170), (1341, 58780), (1490, 52902), (1788, 44085), (2235, 35268), (2682, 29390), (2939, 26820), (2980, 26451), (4470, 17634), (5364, 14695), (5878, 13410), (6705, 11756), (8817, 8940)]