18128630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 37472544

約数和(自身を除く): 19343914

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 631, 845, 1105, 1262, 1690, 2210, 2873, 3155, 5746, 6310, 8203, 10727, 14365, 16406, 21454, 28730, 41015, 53635, 82030, 106639, 107270, 139451, 213278, 278902, 533195, 697255, 1066390, 1394510, 1812863, 3625726, 9064315, 18128630]

約数ペア:

[(1, 18128630), (2, 9064315), (5, 3625726), (10, 1812863), (13, 1394510), (17, 1066390), (26, 697255), (34, 533195), (65, 278902), (85, 213278), (130, 139451), (169, 107270), (170, 106639), (221, 82030), (338, 53635), (442, 41015), (631, 28730), (845, 21454), (1105, 16406), (1262, 14365), (1690, 10727), (2210, 8203), (2873, 6310), (3155, 5746)]