81165840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48313}}^1$

素因数の和:48336

約数の個数: 80

約数和(自身を含む): 287564928

約数和(自身を除く): 206399088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48313, 96626, 144939, 193252, 241565, 289878, 338191, 386504, 483130, 579756, 676382, 724695, 773008, 966260, 1014573, 1159512, 1352764, 1449390, 1690955, 1932520, 2029146, 2319024, 2705528, 2898780, 3381910, 3865040, 4058292, 5072865, 5411056, 5797560, 6763820, 8116584, 10145730, 11595120, 13527640, 16233168, 20291460, 27055280, 40582920, 81165840]

約数ペア:

[(1, 81165840), (2, 40582920), (3, 27055280), (4, 20291460), (5, 16233168), (6, 13527640), (7, 11595120), (8, 10145730), (10, 8116584), (12, 6763820), (14, 5797560), (15, 5411056), (16, 5072865), (20, 4058292), (21, 3865040), (24, 3381910), (28, 2898780), (30, 2705528), (35, 2319024), (40, 2029146), (42, 1932520), (48, 1690955), (56, 1449390), (60, 1352764), (70, 1159512), (80, 1014573), (84, 966260), (105, 773008), (112, 724695), (120, 676382), (140, 579756), (168, 483130), (210, 386504), (240, 338191), (280, 289878), (336, 241565), (420, 193252), (560, 144939), (840, 96626), (1680, 48313)]