81202020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:485

約数の個数: 96

約数和(自身を含む): 237081600

約数和(自身を除く): 155879580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 149, 155, 186, 293, 298, 310, 372, 447, 465, 586, 596, 620, 745, 879, 894, 930, 1172, 1465, 1490, 1758, 1788, 1860, 2235, 2930, 2980, 3516, 4395, 4470, 4619, 5860, 8790, 8940, 9083, 9238, 13857, 17580, 18166, 18476, 23095, 27249, 27714, 36332, 43657, 45415, 46190, 54498, 55428, 69285, 87314, 90830, 92380, 108996, 130971, 136245, 138570, 174628, 181660, 218285, 261942, 272490, 277140, 436570, 523884, 544980, 654855, 873140, 1309710, 1353367, 2619420, 2706734, 4060101, 5413468, 6766835, 8120202, 13533670, 16240404, 20300505, 27067340, 40601010, 81202020]

約数ペア:

[(1, 81202020), (2, 40601010), (3, 27067340), (4, 20300505), (5, 16240404), (6, 13533670), (10, 8120202), (12, 6766835), (15, 5413468), (20, 4060101), (30, 2706734), (31, 2619420), (60, 1353367), (62, 1309710), (93, 873140), (124, 654855), (149, 544980), (155, 523884), (186, 436570), (293, 277140), (298, 272490), (310, 261942), (372, 218285), (447, 181660), (465, 174628), (586, 138570), (596, 136245), (620, 130971), (745, 108996), (879, 92380), (894, 90830), (930, 87314), (1172, 69285), (1465, 55428), (1490, 54498), (1758, 46190), (1788, 45415), (1860, 43657), (2235, 36332), (2930, 27714), (2980, 27249), (3516, 23095), (4395, 18476), (4470, 18166), (4619, 17580), (5860, 13857), (8790, 9238), (8940, 9083)]