4449380

素因数分解:

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

素因数の和:288

約数の個数: 48

約数和(自身を含む): 10219440

約数和(自身を除く): 5770060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 157, 218, 260, 314, 436, 545, 628, 785, 1090, 1417, 1570, 2041, 2180, 2834, 3140, 4082, 5668, 7085, 8164, 10205, 14170, 17113, 20410, 28340, 34226, 40820, 68452, 85565, 171130, 222469, 342260, 444938, 889876, 1112345, 2224690, 4449380]

約数ペア:

[(1, 4449380), (2, 2224690), (4, 1112345), (5, 889876), (10, 444938), (13, 342260), (20, 222469), (26, 171130), (52, 85565), (65, 68452), (109, 40820), (130, 34226), (157, 28340), (218, 20410), (260, 17113), (314, 14170), (436, 10205), (545, 8164), (628, 7085), (785, 5668), (1090, 4082), (1417, 3140), (1570, 2834), (2041, 2180)]