61505240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 144149760

約数和(自身を除く): 82644520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 193, 248, 257, 310, 386, 514, 620, 772, 965, 1028, 1240, 1285, 1544, 1930, 2056, 2570, 3860, 5140, 5983, 7720, 7967, 10280, 11966, 15934, 23932, 29915, 31868, 39835, 47864, 49601, 59830, 63736, 79670, 99202, 119660, 159340, 198404, 239320, 248005, 318680, 396808, 496010, 992020, 1537631, 1984040, 3075262, 6150524, 7688155, 12301048, 15376310, 30752620, 61505240]

約数ペア:

[(1, 61505240), (2, 30752620), (4, 15376310), (5, 12301048), (8, 7688155), (10, 6150524), (20, 3075262), (31, 1984040), (40, 1537631), (62, 992020), (124, 496010), (155, 396808), (193, 318680), (248, 248005), (257, 239320), (310, 198404), (386, 159340), (514, 119660), (620, 99202), (772, 79670), (965, 63736), (1028, 59830), (1240, 49601), (1285, 47864), (1544, 39835), (1930, 31868), (2056, 29915), (2570, 23932), (3860, 15934), (5140, 11966), (5983, 10280), (7720, 7967)]