20220720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6481}}^1$

素因数の和:6510

約数の個数: 80

約数和(自身を含む): 67516512

約数和(自身を除く): 47295792

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, 6481, 12962, 19443, 25924, 32405, 38886, 51848, 64810, 77772, 84253, 97215, 103696, 129620, 155544, 168506, 194430, 252759, 259240, 311088, 337012, 388860, 421265, 505518, 518480, 674024, 777720, 842530, 1011036, 1263795, 1348048, 1555440, 1685060, 2022072, 2527590, 3370120, 4044144, 5055180, 6740240, 10110360, 20220720]

約数ペア:

[(1, 20220720), (2, 10110360), (3, 6740240), (4, 5055180), (5, 4044144), (6, 3370120), (8, 2527590), (10, 2022072), (12, 1685060), (13, 1555440), (15, 1348048), (16, 1263795), (20, 1011036), (24, 842530), (26, 777720), (30, 674024), (39, 518480), (40, 505518), (48, 421265), (52, 388860), (60, 337012), (65, 311088), (78, 259240), (80, 252759), (104, 194430), (120, 168506), (130, 155544), (156, 129620), (195, 103696), (208, 97215), (240, 84253), (260, 77772), (312, 64810), (390, 51848), (520, 38886), (624, 32405), (780, 25924), (1040, 19443), (1560, 12962), (3120, 6481)]