64831000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{4987}}^1$

素因数の和:5021

約数の個数: 64

約数和(自身を含む): 163406880

約数和(自身を除く): 98575880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1625, 2600, 3250, 4987, 6500, 9974, 13000, 19948, 24935, 39896, 49870, 64831, 99740, 124675, 129662, 199480, 249350, 259324, 324155, 498700, 518648, 623375, 648310, 997400, 1246750, 1296620, 1620775, 2493500, 2593240, 3241550, 4987000, 6483100, 8103875, 12966200, 16207750, 32415500, 64831000]

約数ペア:

[(1, 64831000), (2, 32415500), (4, 16207750), (5, 12966200), (8, 8103875), (10, 6483100), (13, 4987000), (20, 3241550), (25, 2593240), (26, 2493500), (40, 1620775), (50, 1296620), (52, 1246750), (65, 997400), (100, 648310), (104, 623375), (125, 518648), (130, 498700), (200, 324155), (250, 259324), (260, 249350), (325, 199480), (500, 129662), (520, 124675), (650, 99740), (1000, 64831), (1300, 49870), (1625, 39896), (2600, 24935), (3250, 19948), (4987, 13000), (6500, 9974)]