18660720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5981}}^1$

素因数の和:6010

約数の個数: 80

約数和(自身を含む): 62308512

約数和(自身を除く): 43647792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 5981, 11962, 17943, 23924, 29905, 35886, 47848, 59810, 71772, 77753, 89715, 95696, 119620, 143544, 155506, 179430, 233259, 239240, 287088, 311012, 358860, 388765, 466518, 478480, 622024, 717720, 777530, 933036, 1166295, 1244048, 1435440, 1555060, 1866072, 2332590, 3110120, 3732144, 4665180, 6220240, 9330360, 18660720]

約数ペア:

[(1, 18660720), (2, 9330360), (3, 6220240), (4, 4665180), (5, 3732144), (6, 3110120), (8, 2332590), (10, 1866072), (12, 1555060), (13, 1435440), (15, 1244048), (16, 1166295), (20, 933036), (24, 777530), (26, 717720), (30, 622024), (39, 478480), (40, 466518), (48, 388765), (52, 358860), (60, 311012), (65, 287088), (78, 239240), (80, 233259), (104, 179430), (120, 155506), (130, 143544), (156, 119620), (195, 95696), (208, 89715), (240, 77753), (260, 71772), (312, 59810), (390, 47848), (520, 35886), (624, 29905), (780, 23924), (1040, 17943), (1560, 11962), (3120, 5981)]