20805330

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7621}}^1$

素因数の和:7651

約数の個数: 64

約数和(自身を含む): 61463808

約数和(自身を除く): 40658478

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7621, 15242, 22863, 38105, 45726, 53347, 76210, 99073, 106694, 114315, 160041, 198146, 228630, 266735, 297219, 320082, 495365, 533470, 594438, 693511, 800205, 990730, 1387022, 1486095, 1600410, 2080533, 2972190, 3467555, 4161066, 6935110, 10402665, 20805330]

約数ペア:

[(1, 20805330), (2, 10402665), (3, 6935110), (5, 4161066), (6, 3467555), (7, 2972190), (10, 2080533), (13, 1600410), (14, 1486095), (15, 1387022), (21, 990730), (26, 800205), (30, 693511), (35, 594438), (39, 533470), (42, 495365), (65, 320082), (70, 297219), (78, 266735), (91, 228630), (105, 198146), (130, 160041), (182, 114315), (195, 106694), (210, 99073), (273, 76210), (390, 53347), (455, 45726), (546, 38105), (910, 22863), (1365, 15242), (2730, 7621)]