25298728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:135

約数の個数: 128

約数和(自身を含む): 64512000

約数和(自身を除く): 39213272

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 31, 38, 52, 56, 59, 62, 76, 91, 104, 118, 124, 133, 152, 182, 217, 236, 247, 248, 266, 364, 403, 413, 434, 472, 494, 532, 589, 728, 767, 806, 826, 868, 988, 1064, 1121, 1178, 1534, 1612, 1652, 1729, 1736, 1829, 1976, 2242, 2356, 2821, 3068, 3224, 3304, 3458, 3658, 4123, 4484, 4712, 5369, 5642, 6136, 6916, 7316, 7657, 7847, 8246, 8968, 10738, 11284, 12803, 13832, 14573, 14632, 15314, 15694, 16492, 21476, 22568, 23777, 25606, 29146, 30628, 31388, 32984, 34751, 42952, 47554, 51212, 53599, 58292, 61256, 62776, 69502, 95108, 102011, 102424, 107198, 116584, 139004, 166439, 190216, 204022, 214396, 243257, 278008, 332878, 408044, 428792, 451763, 486514, 665756, 816088, 903526, 973028, 1331512, 1807052, 1946056, 3162341, 3614104, 6324682, 12649364, 25298728]

約数ペア:

[(1, 25298728), (2, 12649364), (4, 6324682), (7, 3614104), (8, 3162341), (13, 1946056), (14, 1807052), (19, 1331512), (26, 973028), (28, 903526), (31, 816088), (38, 665756), (52, 486514), (56, 451763), (59, 428792), (62, 408044), (76, 332878), (91, 278008), (104, 243257), (118, 214396), (124, 204022), (133, 190216), (152, 166439), (182, 139004), (217, 116584), (236, 107198), (247, 102424), (248, 102011), (266, 95108), (364, 69502), (403, 62776), (413, 61256), (434, 58292), (472, 53599), (494, 51212), (532, 47554), (589, 42952), (728, 34751), (767, 32984), (806, 31388), (826, 30628), (868, 29146), (988, 25606), (1064, 23777), (1121, 22568), (1178, 21476), (1534, 16492), (1612, 15694), (1652, 15314), (1729, 14632), (1736, 14573), (1829, 13832), (1976, 12803), (2242, 11284), (2356, 10738), (2821, 8968), (3068, 8246), (3224, 7847), (3304, 7657), (3458, 7316), (3658, 6916), (4123, 6136), (4484, 5642), (4712, 5369)]