81546360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{503}}^1$

素因数の和:717

約数の個数: 128

約数和(自身を含む): 281594880

約数和(自身を除く): 200048520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 193, 210, 280, 386, 420, 503, 579, 772, 840, 965, 1006, 1158, 1351, 1509, 1544, 1930, 2012, 2316, 2515, 2702, 2895, 3018, 3521, 3860, 4024, 4053, 4632, 5030, 5404, 5790, 6036, 6755, 7042, 7545, 7720, 8106, 10060, 10563, 10808, 11580, 12072, 13510, 14084, 15090, 16212, 17605, 20120, 20265, 21126, 23160, 27020, 28168, 30180, 32424, 35210, 40530, 42252, 52815, 54040, 60360, 70420, 81060, 84504, 97079, 105630, 140840, 162120, 194158, 211260, 291237, 388316, 422520, 485395, 582474, 679553, 776632, 970790, 1164948, 1359106, 1456185, 1941580, 2038659, 2329896, 2718212, 2912370, 3397765, 3883160, 4077318, 5436424, 5824740, 6795530, 8154636, 10193295, 11649480, 13591060, 16309272, 20386590, 27182120, 40773180, 81546360]

約数ペア:

[(1, 81546360), (2, 40773180), (3, 27182120), (4, 20386590), (5, 16309272), (6, 13591060), (7, 11649480), (8, 10193295), (10, 8154636), (12, 6795530), (14, 5824740), (15, 5436424), (20, 4077318), (21, 3883160), (24, 3397765), (28, 2912370), (30, 2718212), (35, 2329896), (40, 2038659), (42, 1941580), (56, 1456185), (60, 1359106), (70, 1164948), (84, 970790), (105, 776632), (120, 679553), (140, 582474), (168, 485395), (193, 422520), (210, 388316), (280, 291237), (386, 211260), (420, 194158), (503, 162120), (579, 140840), (772, 105630), (840, 97079), (965, 84504), (1006, 81060), (1158, 70420), (1351, 60360), (1509, 54040), (1544, 52815), (1930, 42252), (2012, 40530), (2316, 35210), (2515, 32424), (2702, 30180), (2895, 28168), (3018, 27020), (3521, 23160), (3860, 21126), (4024, 20265), (4053, 20120), (4632, 17605), (5030, 16212), (5404, 15090), (5790, 14084), (6036, 13510), (6755, 12072), (7042, 11580), (7545, 10808), (7720, 10563), (8106, 10060)]