19613360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18859}}^1$

素因数の和:18885

約数の個数: 40

約数和(自身を含む): 49111440

約数和(自身を除く): 29498080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18859, 37718, 75436, 94295, 150872, 188590, 245167, 301744, 377180, 490334, 754360, 980668, 1225835, 1508720, 1961336, 2451670, 3922672, 4903340, 9806680, 19613360]

約数ペア:

[(1, 19613360), (2, 9806680), (4, 4903340), (5, 3922672), (8, 2451670), (10, 1961336), (13, 1508720), (16, 1225835), (20, 980668), (26, 754360), (40, 490334), (52, 377180), (65, 301744), (80, 245167), (104, 188590), (130, 150872), (208, 94295), (260, 75436), (520, 37718), (1040, 18859)]