561808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:131

約数の個数: 40

約数和(自身を含む): 1220408

約数和(自身を除く): 658600

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 73, 74, 104, 146, 148, 208, 292, 296, 481, 584, 592, 949, 962, 1168, 1898, 1924, 2701, 3796, 3848, 5402, 7592, 7696, 10804, 15184, 21608, 35113, 43216, 70226, 140452, 280904, 561808]

約数ペア:

[(1, 561808), (2, 280904), (4, 140452), (8, 70226), (13, 43216), (16, 35113), (26, 21608), (37, 15184), (52, 10804), (73, 7696), (74, 7592), (104, 5402), (146, 3848), (148, 3796), (208, 2701), (292, 1924), (296, 1898), (481, 1168), (584, 962), (592, 949)]