20519904

素因数分解:

$2^5\times 3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 56881440

約数和(自身を除く): 36361536

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 37, 48, 53, 74, 96, 106, 109, 111, 148, 159, 212, 218, 222, 296, 318, 327, 424, 436, 444, 592, 636, 654, 848, 872, 888, 1184, 1272, 1308, 1696, 1744, 1776, 1961, 2544, 2616, 3488, 3552, 3922, 4033, 5088, 5232, 5777, 5883, 7844, 8066, 10464, 11554, 11766, 12099, 15688, 16132, 17331, 23108, 23532, 24198, 31376, 32264, 34662, 46216, 47064, 48396, 62752, 64528, 69324, 92432, 94128, 96792, 129056, 138648, 184864, 188256, 193584, 213749, 277296, 387168, 427498, 554592, 641247, 854996, 1282494, 1709992, 2564988, 3419984, 5129976, 6839968, 10259952, 20519904]

約数ペア:

[(1, 20519904), (2, 10259952), (3, 6839968), (4, 5129976), (6, 3419984), (8, 2564988), (12, 1709992), (16, 1282494), (24, 854996), (32, 641247), (37, 554592), (48, 427498), (53, 387168), (74, 277296), (96, 213749), (106, 193584), (109, 188256), (111, 184864), (148, 138648), (159, 129056), (212, 96792), (218, 94128), (222, 92432), (296, 69324), (318, 64528), (327, 62752), (424, 48396), (436, 47064), (444, 46216), (592, 34662), (636, 32264), (654, 31376), (848, 24198), (872, 23532), (888, 23108), (1184, 17331), (1272, 16132), (1308, 15688), (1696, 12099), (1744, 11766), (1776, 11554), (1961, 10464), (2544, 8066), (2616, 7844), (3488, 5883), (3552, 5777), (3922, 5232), (4033, 5088)]