18494840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5081}}^1$

素因数の和:5112

約数の個数: 64

約数和(自身を含む): 51226560

約数和(自身を除く): 32731720

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, 5081, 10162, 20324, 25405, 35567, 40648, 50810, 66053, 71134, 101620, 132106, 142268, 177835, 203240, 264212, 284536, 330265, 355670, 462371, 528424, 660530, 711340, 924742, 1321060, 1422680, 1849484, 2311855, 2642120, 3698968, 4623710, 9247420, 18494840]

約数ペア:

[(1, 18494840), (2, 9247420), (4, 4623710), (5, 3698968), (7, 2642120), (8, 2311855), (10, 1849484), (13, 1422680), (14, 1321060), (20, 924742), (26, 711340), (28, 660530), (35, 528424), (40, 462371), (52, 355670), (56, 330265), (65, 284536), (70, 264212), (91, 203240), (104, 177835), (130, 142268), (140, 132106), (182, 101620), (260, 71134), (280, 66053), (364, 50810), (455, 40648), (520, 35567), (728, 25405), (910, 20324), (1820, 10162), (3640, 5081)]