19820580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25411}}^1$

素因数の和:25436

約数の個数: 48

約数和(自身を含む): 59769024

約数和(自身を除く): 39948444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25411, 50822, 76233, 101644, 127055, 152466, 254110, 304932, 330343, 381165, 508220, 660686, 762330, 991029, 1321372, 1524660, 1651715, 1982058, 3303430, 3964116, 4955145, 6606860, 9910290, 19820580]

約数ペア:

[(1, 19820580), (2, 9910290), (3, 6606860), (4, 4955145), (5, 3964116), (6, 3303430), (10, 1982058), (12, 1651715), (13, 1524660), (15, 1321372), (20, 991029), (26, 762330), (30, 660686), (39, 508220), (52, 381165), (60, 330343), (65, 304932), (78, 254110), (130, 152466), (156, 127055), (195, 101644), (260, 76233), (390, 50822), (780, 25411)]