64280720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1453}}^1$

素因数の和:1552

約数の個数: 80

約数和(自身を含む): 173084160

約数和(自身を除く): 108803440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 790, 1106, 1264, 1453, 1580, 2212, 2765, 2906, 3160, 4424, 5530, 5812, 6320, 7265, 8848, 10171, 11060, 11624, 14530, 20342, 22120, 23248, 29060, 40684, 44240, 50855, 58120, 81368, 101710, 114787, 116240, 162736, 203420, 229574, 406840, 459148, 573935, 803509, 813680, 918296, 1147870, 1607018, 1836592, 2295740, 3214036, 4017545, 4591480, 6428072, 8035090, 9182960, 12856144, 16070180, 32140360, 64280720]

約数ペア:

[(1, 64280720), (2, 32140360), (4, 16070180), (5, 12856144), (7, 9182960), (8, 8035090), (10, 6428072), (14, 4591480), (16, 4017545), (20, 3214036), (28, 2295740), (35, 1836592), (40, 1607018), (56, 1147870), (70, 918296), (79, 813680), (80, 803509), (112, 573935), (140, 459148), (158, 406840), (280, 229574), (316, 203420), (395, 162736), (553, 116240), (560, 114787), (632, 101710), (790, 81368), (1106, 58120), (1264, 50855), (1453, 44240), (1580, 40684), (2212, 29060), (2765, 23248), (2906, 22120), (3160, 20342), (4424, 14530), (5530, 11624), (5812, 11060), (6320, 10171), (7265, 8848)]