18339880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2713}}^1$

素因数の和:2750

約数の個数: 48

約数和(自身を含む): 44699580

約数和(自身を除く): 26359700

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2713, 3380, 5426, 6760, 10852, 13565, 21704, 27130, 35269, 54260, 70538, 108520, 141076, 176345, 282152, 352690, 458497, 705380, 916994, 1410760, 1833988, 2292485, 3667976, 4584970, 9169940, 18339880]

約数ペア:

[(1, 18339880), (2, 9169940), (4, 4584970), (5, 3667976), (8, 2292485), (10, 1833988), (13, 1410760), (20, 916994), (26, 705380), (40, 458497), (52, 352690), (65, 282152), (104, 176345), (130, 141076), (169, 108520), (260, 70538), (338, 54260), (520, 35269), (676, 27130), (845, 21704), (1352, 13565), (1690, 10852), (2713, 6760), (3380, 5426)]