8898760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 21898800

約数和(自身を除く): 13000040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 109, 130, 157, 218, 260, 314, 436, 520, 545, 628, 785, 872, 1090, 1256, 1417, 1570, 2041, 2180, 2834, 3140, 4082, 4360, 5668, 6280, 7085, 8164, 10205, 11336, 14170, 16328, 17113, 20410, 28340, 34226, 40820, 56680, 68452, 81640, 85565, 136904, 171130, 222469, 342260, 444938, 684520, 889876, 1112345, 1779752, 2224690, 4449380, 8898760]

約数ペア:

[(1, 8898760), (2, 4449380), (4, 2224690), (5, 1779752), (8, 1112345), (10, 889876), (13, 684520), (20, 444938), (26, 342260), (40, 222469), (52, 171130), (65, 136904), (104, 85565), (109, 81640), (130, 68452), (157, 56680), (218, 40820), (260, 34226), (314, 28340), (436, 20410), (520, 17113), (545, 16328), (628, 14170), (785, 11336), (872, 10205), (1090, 8164), (1256, 7085), (1417, 6280), (1570, 5668), (2041, 4360), (2180, 4082), (2834, 3140)]