25218016

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:144

約数の個数: 72

約数和(自身を含む): 54726840

約数和(自身を除く): 29508824

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 59, 74, 76, 118, 148, 152, 236, 296, 304, 361, 472, 592, 608, 703, 722, 944, 1121, 1184, 1406, 1444, 1888, 2183, 2242, 2812, 2888, 4366, 4484, 5624, 5776, 8732, 8968, 11248, 11552, 13357, 17464, 17936, 21299, 22496, 26714, 34928, 35872, 41477, 42598, 53428, 69856, 82954, 85196, 106856, 165908, 170392, 213712, 331816, 340784, 427424, 663632, 681568, 788063, 1327264, 1576126, 3152252, 6304504, 12609008, 25218016]

約数ペア:

[(1, 25218016), (2, 12609008), (4, 6304504), (8, 3152252), (16, 1576126), (19, 1327264), (32, 788063), (37, 681568), (38, 663632), (59, 427424), (74, 340784), (76, 331816), (118, 213712), (148, 170392), (152, 165908), (236, 106856), (296, 85196), (304, 82954), (361, 69856), (472, 53428), (592, 42598), (608, 41477), (703, 35872), (722, 34928), (944, 26714), (1121, 22496), (1184, 21299), (1406, 17936), (1444, 17464), (1888, 13357), (2183, 11552), (2242, 11248), (2812, 8968), (2888, 8732), (4366, 5776), (4484, 5624)]