25170040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{373}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 65165760

約数和(自身を除く): 39995720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 241, 280, 373, 482, 746, 964, 1205, 1492, 1687, 1865, 1928, 2410, 2611, 2984, 3374, 3730, 4820, 5222, 6748, 7460, 8435, 9640, 10444, 13055, 13496, 14920, 16870, 20888, 26110, 33740, 52220, 67480, 89893, 104440, 179786, 359572, 449465, 629251, 719144, 898930, 1258502, 1797860, 2517004, 3146255, 3595720, 5034008, 6292510, 12585020, 25170040]

約数ペア:

[(1, 25170040), (2, 12585020), (4, 6292510), (5, 5034008), (7, 3595720), (8, 3146255), (10, 2517004), (14, 1797860), (20, 1258502), (28, 898930), (35, 719144), (40, 629251), (56, 449465), (70, 359572), (140, 179786), (241, 104440), (280, 89893), (373, 67480), (482, 52220), (746, 33740), (964, 26110), (1205, 20888), (1492, 16870), (1687, 14920), (1865, 13496), (1928, 13055), (2410, 10444), (2611, 9640), (2984, 8435), (3374, 7460), (3730, 6748), (4820, 5222)]