261723280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{35951}}^1$

素因数の和:35984

約数の個数: 80

約数和(自身を含む): 748952064

約数和(自身を除く): 487228784

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 35951, 71902, 143804, 179755, 251657, 287608, 359510, 467363, 503314, 575216, 719020, 934726, 1006628, 1258285, 1438040, 1869452, 2013256, 2336815, 2516570, 2876080, 3271541, 3738904, 4026512, 4673630, 5033140, 6543082, 7477808, 9347260, 10066280, 13086164, 16357705, 18694520, 20132560, 26172328, 32715410, 37389040, 52344656, 65430820, 130861640, 261723280]

約数ペア:

[(1, 261723280), (2, 130861640), (4, 65430820), (5, 52344656), (7, 37389040), (8, 32715410), (10, 26172328), (13, 20132560), (14, 18694520), (16, 16357705), (20, 13086164), (26, 10066280), (28, 9347260), (35, 7477808), (40, 6543082), (52, 5033140), (56, 4673630), (65, 4026512), (70, 3738904), (80, 3271541), (91, 2876080), (104, 2516570), (112, 2336815), (130, 2013256), (140, 1869452), (182, 1438040), (208, 1258285), (260, 1006628), (280, 934726), (364, 719020), (455, 575216), (520, 503314), (560, 467363), (728, 359510), (910, 287608), (1040, 251657), (1456, 179755), (1820, 143804), (3640, 71902), (7280, 35951)]