686436699280

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{787}}^1\times {\mathrm{78437}}^1$

素因数の和:79376

約数の個数: 80

約数和(自身を含む): 1609510109760

約数和(自身を除く): 923073410480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 787, 1112, 1390, 1574, 2224, 2780, 3148, 3935, 5560, 6296, 7870, 11120, 12592, 15740, 31480, 62960, 78437, 109393, 156874, 218786, 313748, 392185, 437572, 546965, 627496, 784370, 875144, 1093930, 1254992, 1568740, 1750288, 2187860, 3137480, 4375720, 6274960, 8751440, 10902743, 21805486, 43610972, 54513715, 61729919, 87221944, 109027430, 123459838, 174443888, 218054860, 246919676, 308649595, 436109720, 493839352, 617299190, 872219440, 987678704, 1234598380, 2469196760, 4938393520, 8580458741, 17160917482, 34321834964, 42902293705, 68643669928, 85804587410, 137287339856, 171609174820, 343218349640, 686436699280]

約数ペア:

[(1, 686436699280), (2, 343218349640), (4, 171609174820), (5, 137287339856), (8, 85804587410), (10, 68643669928), (16, 42902293705), (20, 34321834964), (40, 17160917482), (80, 8580458741), (139, 4938393520), (278, 2469196760), (556, 1234598380), (695, 987678704), (787, 872219440), (1112, 617299190), (1390, 493839352), (1574, 436109720), (2224, 308649595), (2780, 246919676), (3148, 218054860), (3935, 174443888), (5560, 123459838), (6296, 109027430), (7870, 87221944), (11120, 61729919), (12592, 54513715), (15740, 43610972), (31480, 21805486), (62960, 10902743), (78437, 8751440), (109393, 6274960), (156874, 4375720), (218786, 3137480), (313748, 2187860), (392185, 1750288), (437572, 1568740), (546965, 1254992), (627496, 1093930), (784370, 875144)]