20758140

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2957}}^1$

素因数の和:2988

約数の個数: 96

約数和(自身を含む): 69572160

約数和(自身を除く): 48814020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 2957, 3510, 5914, 7020, 8871, 11828, 14785, 17742, 26613, 29570, 35484, 38441, 44355, 53226, 59140, 76882, 79839, 88710, 106452, 115323, 133065, 153764, 159678, 177420, 192205, 230646, 266130, 319356, 345969, 384410, 399195, 461292, 532260, 576615, 691938, 768820, 798390, 1037907, 1153230, 1383876, 1596780, 1729845, 2075814, 2306460, 3459690, 4151628, 5189535, 6919380, 10379070, 20758140]

約数ペア:

[(1, 20758140), (2, 10379070), (3, 6919380), (4, 5189535), (5, 4151628), (6, 3459690), (9, 2306460), (10, 2075814), (12, 1729845), (13, 1596780), (15, 1383876), (18, 1153230), (20, 1037907), (26, 798390), (27, 768820), (30, 691938), (36, 576615), (39, 532260), (45, 461292), (52, 399195), (54, 384410), (60, 345969), (65, 319356), (78, 266130), (90, 230646), (108, 192205), (117, 177420), (130, 159678), (135, 153764), (156, 133065), (180, 115323), (195, 106452), (234, 88710), (260, 79839), (270, 76882), (351, 59140), (390, 53226), (468, 44355), (540, 38441), (585, 35484), (702, 29570), (780, 26613), (1170, 17742), (1404, 14785), (1755, 11828), (2340, 8871), (2957, 7020), (3510, 5914)]