68904080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1733}}^1$

素因数の和:1824

約数の個数: 80

約数和(自身を含む): 185773824

約数和(自身を除く): 116869744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1733, 1988, 2485, 2840, 3466, 3976, 4970, 5680, 6932, 7952, 8665, 9940, 12131, 13864, 17330, 19880, 24262, 27728, 34660, 39760, 48524, 60655, 69320, 97048, 121310, 123043, 138640, 194096, 242620, 246086, 485240, 492172, 615215, 861301, 970480, 984344, 1230430, 1722602, 1968688, 2460860, 3445204, 4306505, 4921720, 6890408, 8613010, 9843440, 13780816, 17226020, 34452040, 68904080]

約数ペア:

[(1, 68904080), (2, 34452040), (4, 17226020), (5, 13780816), (7, 9843440), (8, 8613010), (10, 6890408), (14, 4921720), (16, 4306505), (20, 3445204), (28, 2460860), (35, 1968688), (40, 1722602), (56, 1230430), (70, 984344), (71, 970480), (80, 861301), (112, 615215), (140, 492172), (142, 485240), (280, 246086), (284, 242620), (355, 194096), (497, 138640), (560, 123043), (568, 121310), (710, 97048), (994, 69320), (1136, 60655), (1420, 48524), (1733, 39760), (1988, 34660), (2485, 27728), (2840, 24262), (3466, 19880), (3976, 17330), (4970, 13864), (5680, 12131), (6932, 9940), (7952, 8665)]