17970680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4937}}^1$

素因数の和:4968

約数の個数: 64

約数和(自身を含む): 49775040

約数和(自身を除く): 31804360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4937, 9874, 19748, 24685, 34559, 39496, 49370, 64181, 69118, 98740, 128362, 138236, 172795, 197480, 256724, 276472, 320905, 345590, 449267, 513448, 641810, 691180, 898534, 1283620, 1382360, 1797068, 2246335, 2567240, 3594136, 4492670, 8985340, 17970680]

約数ペア:

[(1, 17970680), (2, 8985340), (4, 4492670), (5, 3594136), (7, 2567240), (8, 2246335), (10, 1797068), (13, 1382360), (14, 1283620), (20, 898534), (26, 691180), (28, 641810), (35, 513448), (40, 449267), (52, 345590), (56, 320905), (65, 276472), (70, 256724), (91, 197480), (104, 172795), (130, 138236), (140, 128362), (182, 98740), (260, 69118), (280, 64181), (364, 49370), (455, 39496), (520, 34559), (728, 24685), (910, 19748), (1820, 9874), (3640, 4937)]