20858760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4457}}^1$

素因数の和:4487

約数の個数: 96

約数和(自身を含む): 73022040

約数和(自身を除く): 52163280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4457, 4680, 8914, 13371, 17828, 22285, 26742, 35656, 40113, 44570, 53484, 57941, 66855, 80226, 89140, 106968, 115882, 133710, 160452, 173823, 178280, 200565, 231764, 267420, 289705, 320904, 347646, 401130, 463528, 521469, 534840, 579410, 695292, 802260, 869115, 1042938, 1158820, 1390584, 1604520, 1738230, 2085876, 2317640, 2607345, 3476460, 4171752, 5214690, 6952920, 10429380, 20858760]

約数ペア:

[(1, 20858760), (2, 10429380), (3, 6952920), (4, 5214690), (5, 4171752), (6, 3476460), (8, 2607345), (9, 2317640), (10, 2085876), (12, 1738230), (13, 1604520), (15, 1390584), (18, 1158820), (20, 1042938), (24, 869115), (26, 802260), (30, 695292), (36, 579410), (39, 534840), (40, 521469), (45, 463528), (52, 401130), (60, 347646), (65, 320904), (72, 289705), (78, 267420), (90, 231764), (104, 200565), (117, 178280), (120, 173823), (130, 160452), (156, 133710), (180, 115882), (195, 106968), (234, 89140), (260, 80226), (312, 66855), (360, 57941), (390, 53484), (468, 44570), (520, 40113), (585, 35656), (780, 26742), (936, 22285), (1170, 17828), (1560, 13371), (2340, 8914), (4457, 4680)]