77664760

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 179172000

約数和(自身を除く): 101507240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 149, 157, 166, 298, 314, 332, 415, 596, 628, 664, 745, 785, 830, 1192, 1256, 1490, 1570, 1660, 2980, 3140, 3320, 5960, 6280, 12367, 13031, 23393, 24734, 26062, 46786, 49468, 52124, 61835, 65155, 93572, 98936, 104248, 116965, 123670, 130310, 187144, 233930, 247340, 260620, 467860, 494680, 521240, 935720, 1941619, 3883238, 7766476, 9708095, 15532952, 19416190, 38832380, 77664760]

約数ペア:

[(1, 77664760), (2, 38832380), (4, 19416190), (5, 15532952), (8, 9708095), (10, 7766476), (20, 3883238), (40, 1941619), (83, 935720), (149, 521240), (157, 494680), (166, 467860), (298, 260620), (314, 247340), (332, 233930), (415, 187144), (596, 130310), (628, 123670), (664, 116965), (745, 104248), (785, 98936), (830, 93572), (1192, 65155), (1256, 61835), (1490, 52124), (1570, 49468), (1660, 46786), (2980, 26062), (3140, 24734), (3320, 23393), (5960, 13031), (6280, 12367)]