20532720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6581}}^1$

素因数の和:6610

約数の個数: 80

約数和(自身を含む): 68558112

約数和(自身を除く): 48025392

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, 6581, 13162, 19743, 26324, 32905, 39486, 52648, 65810, 78972, 85553, 98715, 105296, 131620, 157944, 171106, 197430, 256659, 263240, 315888, 342212, 394860, 427765, 513318, 526480, 684424, 789720, 855530, 1026636, 1283295, 1368848, 1579440, 1711060, 2053272, 2566590, 3422120, 4106544, 5133180, 6844240, 10266360, 20532720]

約数ペア:

[(1, 20532720), (2, 10266360), (3, 6844240), (4, 5133180), (5, 4106544), (6, 3422120), (8, 2566590), (10, 2053272), (12, 1711060), (13, 1579440), (15, 1368848), (16, 1283295), (20, 1026636), (24, 855530), (26, 789720), (30, 684424), (39, 526480), (40, 513318), (48, 427765), (52, 394860), (60, 342212), (65, 315888), (78, 263240), (80, 256659), (104, 197430), (120, 171106), (130, 157944), (156, 131620), (195, 105296), (208, 98715), (240, 85553), (260, 78972), (312, 65810), (390, 52648), (520, 39486), (624, 32905), (780, 26324), (1040, 19743), (1560, 13162), (3120, 6581)]