845638840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{8191}}^1$

素因数の和:8320

約数の個数: 64

約数和(自身を含む): 1990656000

約数和(自身を除く): 1145017160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 89, 116, 145, 178, 232, 290, 356, 445, 580, 712, 890, 1160, 1780, 2581, 3560, 5162, 8191, 10324, 12905, 16382, 20648, 25810, 32764, 40955, 51620, 65528, 81910, 103240, 163820, 237539, 327640, 475078, 728999, 950156, 1187695, 1457998, 1900312, 2375390, 2915996, 3644995, 4750780, 5831992, 7289990, 9501560, 14579980, 21140971, 29159960, 42281942, 84563884, 105704855, 169127768, 211409710, 422819420, 845638840]

約数ペア:

[(1, 845638840), (2, 422819420), (4, 211409710), (5, 169127768), (8, 105704855), (10, 84563884), (20, 42281942), (29, 29159960), (40, 21140971), (58, 14579980), (89, 9501560), (116, 7289990), (145, 5831992), (178, 4750780), (232, 3644995), (290, 2915996), (356, 2375390), (445, 1900312), (580, 1457998), (712, 1187695), (890, 950156), (1160, 728999), (1780, 475078), (2581, 327640), (3560, 237539), (5162, 163820), (8191, 103240), (10324, 81910), (12905, 65528), (16382, 51620), (20648, 40955), (25810, 32764)]