8049586480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{249677}}^1$

素因数の和:249734

約数の個数: 80

約数和(自身を含む): 20805168384

約数和(自身を除く): 12755581904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 249677, 499354, 998708, 1248385, 1997416, 2496770, 3245801, 3994832, 4993540, 6491602, 7739987, 9987080, 12983204, 15479974, 16229005, 19974160, 25966408, 30959948, 32458010, 38699935, 51932816, 61919896, 64916020, 77399870, 100619831, 123839792, 129832040, 154799740, 201239662, 259664080, 309599480, 402479324, 503099155, 619198960, 804958648, 1006198310, 1609917296, 2012396620, 4024793240, 8049586480]

約数ペア:

[(1, 8049586480), (2, 4024793240), (4, 2012396620), (5, 1609917296), (8, 1006198310), (10, 804958648), (13, 619198960), (16, 503099155), (20, 402479324), (26, 309599480), (31, 259664080), (40, 201239662), (52, 154799740), (62, 129832040), (65, 123839792), (80, 100619831), (104, 77399870), (124, 64916020), (130, 61919896), (155, 51932816), (208, 38699935), (248, 32458010), (260, 30959948), (310, 25966408), (403, 19974160), (496, 16229005), (520, 15479974), (620, 12983204), (806, 9987080), (1040, 7739987), (1240, 6491602), (1612, 4993540), (2015, 3994832), (2480, 3245801), (3224, 2496770), (4030, 1997416), (6448, 1248385), (8060, 998708), (16120, 499354), (32240, 249677)]