131358760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1609}}^1$

素因数の和:1790

約数の個数: 64

約数和(自身を含む): 320518800

約数和(自身を除く): 189160040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 628, 785, 1256, 1570, 1609, 2041, 3140, 3218, 4082, 6280, 6436, 8045, 8164, 10205, 12872, 16090, 16328, 20410, 20917, 32180, 40820, 41834, 64360, 81640, 83668, 104585, 167336, 209170, 252613, 418340, 505226, 836680, 1010452, 1263065, 2020904, 2526130, 3283969, 5052260, 6567938, 10104520, 13135876, 16419845, 26271752, 32839690, 65679380, 131358760]

約数ペア:

[(1, 131358760), (2, 65679380), (4, 32839690), (5, 26271752), (8, 16419845), (10, 13135876), (13, 10104520), (20, 6567938), (26, 5052260), (40, 3283969), (52, 2526130), (65, 2020904), (104, 1263065), (130, 1010452), (157, 836680), (260, 505226), (314, 418340), (520, 252613), (628, 209170), (785, 167336), (1256, 104585), (1570, 83668), (1609, 81640), (2041, 64360), (3140, 41834), (3218, 40820), (4082, 32180), (6280, 20917), (6436, 20410), (8045, 16328), (8164, 16090), (10205, 12872)]