8045147540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{131}}^1\times {\mathrm{2243}}^1$

素因数の和:2457

約数の個数: 72

約数和(自身を含む): 17504115552

約数和(自身を除く): 9458968012

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 131, 148, 185, 262, 370, 524, 655, 740, 1310, 1369, 2243, 2620, 2738, 4486, 4847, 5476, 6845, 8972, 9694, 11215, 13690, 19388, 22430, 24235, 27380, 44860, 48470, 82991, 96940, 165982, 179339, 293833, 331964, 358678, 414955, 587666, 717356, 829910, 896695, 1175332, 1469165, 1659820, 1793390, 2938330, 3070667, 3586780, 5876660, 6141334, 10871821, 12282668, 15353335, 21743642, 30706670, 43487284, 54359105, 61413340, 108718210, 217436420, 402257377, 804514754, 1609029508, 2011286885, 4022573770, 8045147540]

約数ペア:

[(1, 8045147540), (2, 4022573770), (4, 2011286885), (5, 1609029508), (10, 804514754), (20, 402257377), (37, 217436420), (74, 108718210), (131, 61413340), (148, 54359105), (185, 43487284), (262, 30706670), (370, 21743642), (524, 15353335), (655, 12282668), (740, 10871821), (1310, 6141334), (1369, 5876660), (2243, 3586780), (2620, 3070667), (2738, 2938330), (4486, 1793390), (4847, 1659820), (5476, 1469165), (6845, 1175332), (8972, 896695), (9694, 829910), (11215, 717356), (13690, 587666), (19388, 414955), (22430, 358678), (24235, 331964), (27380, 293833), (44860, 179339), (48470, 165982), (82991, 96940)]