27958840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7681}}^1$

素因数の和:7712

約数の個数: 64

約数和(自身を含む): 77434560

約数和(自身を除く): 49475720

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, 7681, 15362, 30724, 38405, 53767, 61448, 76810, 99853, 107534, 153620, 199706, 215068, 268835, 307240, 399412, 430136, 499265, 537670, 698971, 798824, 998530, 1075340, 1397942, 1997060, 2150680, 2795884, 3494855, 3994120, 5591768, 6989710, 13979420, 27958840]

約数ペア:

[(1, 27958840), (2, 13979420), (4, 6989710), (5, 5591768), (7, 3994120), (8, 3494855), (10, 2795884), (13, 2150680), (14, 1997060), (20, 1397942), (26, 1075340), (28, 998530), (35, 798824), (40, 698971), (52, 537670), (56, 499265), (65, 430136), (70, 399412), (91, 307240), (104, 268835), (130, 215068), (140, 199706), (182, 153620), (260, 107534), (280, 99853), (364, 76810), (455, 61448), (520, 53767), (728, 38405), (910, 30724), (1820, 15362), (3640, 7681)]