251828128

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{431}}^1$

素因数の和:522

約数の個数: 72

約数和(自身を含む): 540509760

約数和(自身を除く): 288681632

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 76, 124, 152, 248, 304, 431, 496, 589, 608, 862, 961, 992, 1178, 1724, 1922, 2356, 3448, 3844, 4712, 6896, 7688, 8189, 9424, 13361, 13792, 15376, 16378, 18259, 18848, 26722, 30752, 32756, 36518, 53444, 65512, 73036, 106888, 131024, 146072, 213776, 253859, 262048, 292144, 414191, 427552, 507718, 584288, 828382, 1015436, 1656764, 2030872, 3313528, 4061744, 6627056, 7869629, 8123488, 13254112, 15739258, 31478516, 62957032, 125914064, 251828128]

約数ペア:

[(1, 251828128), (2, 125914064), (4, 62957032), (8, 31478516), (16, 15739258), (19, 13254112), (31, 8123488), (32, 7869629), (38, 6627056), (62, 4061744), (76, 3313528), (124, 2030872), (152, 1656764), (248, 1015436), (304, 828382), (431, 584288), (496, 507718), (589, 427552), (608, 414191), (862, 292144), (961, 262048), (992, 253859), (1178, 213776), (1724, 146072), (1922, 131024), (2356, 106888), (3448, 73036), (3844, 65512), (4712, 53444), (6896, 36518), (7688, 32756), (8189, 30752), (9424, 26722), (13361, 18848), (13792, 18259), (15376, 16378)]