81523920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2593}}^1$

素因数の和:2740

約数の個数: 80

約数和(自身を含む): 254751552

約数和(自身を除く): 173227632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2096, 2593, 2620, 3144, 3930, 5186, 5240, 6288, 7779, 7860, 10372, 10480, 12965, 15558, 15720, 20744, 25930, 31116, 31440, 38895, 41488, 51860, 62232, 77790, 103720, 124464, 155580, 207440, 311160, 339683, 622320, 679366, 1019049, 1358732, 1698415, 2038098, 2717464, 3396830, 4076196, 5095245, 5434928, 6793660, 8152392, 10190490, 13587320, 16304784, 20380980, 27174640, 40761960, 81523920]

約数ペア:

[(1, 81523920), (2, 40761960), (3, 27174640), (4, 20380980), (5, 16304784), (6, 13587320), (8, 10190490), (10, 8152392), (12, 6793660), (15, 5434928), (16, 5095245), (20, 4076196), (24, 3396830), (30, 2717464), (40, 2038098), (48, 1698415), (60, 1358732), (80, 1019049), (120, 679366), (131, 622320), (240, 339683), (262, 311160), (393, 207440), (524, 155580), (655, 124464), (786, 103720), (1048, 77790), (1310, 62232), (1572, 51860), (1965, 41488), (2096, 38895), (2593, 31440), (2620, 31116), (3144, 25930), (3930, 20744), (5186, 15720), (5240, 15558), (6288, 12965), (7779, 10480), (7860, 10372)]