457040

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:239

約数の個数: 40

約数和(自身を含む): 1104840

約数和(自身を除く): 647800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 197, 232, 290, 394, 464, 580, 788, 985, 1160, 1576, 1970, 2320, 3152, 3940, 5713, 7880, 11426, 15760, 22852, 28565, 45704, 57130, 91408, 114260, 228520, 457040]

約数ペア:

[(1, 457040), (2, 228520), (4, 114260), (5, 91408), (8, 57130), (10, 45704), (16, 28565), (20, 22852), (29, 15760), (40, 11426), (58, 7880), (80, 5713), (116, 3940), (145, 3152), (197, 2320), (232, 1970), (290, 1576), (394, 1160), (464, 985), (580, 788)]