20314840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5581}}^1$

素因数の和:5612

約数の個数: 64

約数和(自身を含む): 56266560

約数和(自身を除く): 35951720

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, 5581, 11162, 22324, 27905, 39067, 44648, 55810, 72553, 78134, 111620, 145106, 156268, 195335, 223240, 290212, 312536, 362765, 390670, 507871, 580424, 725530, 781340, 1015742, 1451060, 1562680, 2031484, 2539355, 2902120, 4062968, 5078710, 10157420, 20314840]

約数ペア:

[(1, 20314840), (2, 10157420), (4, 5078710), (5, 4062968), (7, 2902120), (8, 2539355), (10, 2031484), (13, 1562680), (14, 1451060), (20, 1015742), (26, 781340), (28, 725530), (35, 580424), (40, 507871), (52, 390670), (56, 362765), (65, 312536), (70, 290212), (91, 223240), (104, 195335), (130, 156268), (140, 145106), (182, 111620), (260, 78134), (280, 72553), (364, 55810), (455, 44648), (520, 39067), (728, 27905), (910, 22324), (1820, 11162), (3640, 5581)]