80320890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{205951}}^1$

素因数の和:205974

約数の個数: 32

約数和(自身を含む): 207599616

約数和(自身を除く): 127278726

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 205951, 411902, 617853, 1029755, 1235706, 2059510, 2677363, 3089265, 5354726, 6178530, 8032089, 13386815, 16064178, 26773630, 40160445, 80320890]

約数ペア:

[(1, 80320890), (2, 40160445), (3, 26773630), (5, 16064178), (6, 13386815), (10, 8032089), (13, 6178530), (15, 5354726), (26, 3089265), (30, 2677363), (39, 2059510), (65, 1235706), (78, 1029755), (130, 617853), (195, 411902), (390, 205951)]