68881960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:563

約数の個数: 128

約数和(自身を含む): 194400000

約数和(自身を除く): 125518040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 29, 34, 35, 40, 56, 58, 68, 70, 85, 116, 119, 136, 140, 145, 170, 203, 232, 238, 280, 290, 340, 406, 476, 493, 499, 580, 595, 680, 812, 952, 986, 998, 1015, 1160, 1190, 1624, 1972, 1996, 2030, 2380, 2465, 2495, 3451, 3493, 3944, 3992, 4060, 4760, 4930, 4990, 6902, 6986, 8120, 8483, 9860, 9980, 13804, 13972, 14471, 16966, 17255, 17465, 19720, 19960, 27608, 27944, 28942, 33932, 34510, 34930, 42415, 57884, 59381, 67864, 69020, 69860, 72355, 84830, 101297, 115768, 118762, 138040, 139720, 144710, 169660, 202594, 237524, 246007, 289420, 296905, 339320, 405188, 475048, 492014, 506485, 578840, 593810, 810376, 984028, 1012970, 1187620, 1230035, 1722049, 1968056, 2025940, 2375240, 2460070, 3444098, 4051880, 4920140, 6888196, 8610245, 9840280, 13776392, 17220490, 34440980, 68881960]

約数ペア:

[(1, 68881960), (2, 34440980), (4, 17220490), (5, 13776392), (7, 9840280), (8, 8610245), (10, 6888196), (14, 4920140), (17, 4051880), (20, 3444098), (28, 2460070), (29, 2375240), (34, 2025940), (35, 1968056), (40, 1722049), (56, 1230035), (58, 1187620), (68, 1012970), (70, 984028), (85, 810376), (116, 593810), (119, 578840), (136, 506485), (140, 492014), (145, 475048), (170, 405188), (203, 339320), (232, 296905), (238, 289420), (280, 246007), (290, 237524), (340, 202594), (406, 169660), (476, 144710), (493, 139720), (499, 138040), (580, 118762), (595, 115768), (680, 101297), (812, 84830), (952, 72355), (986, 69860), (998, 69020), (1015, 67864), (1160, 59381), (1190, 57884), (1624, 42415), (1972, 34930), (1996, 34510), (2030, 33932), (2380, 28942), (2465, 27944), (2495, 27608), (3451, 19960), (3493, 19720), (3944, 17465), (3992, 17255), (4060, 16966), (4760, 14471), (4930, 13972), (4990, 13804), (6902, 9980), (6986, 9860), (8120, 8483)]