258825040

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8317}}^1$

素因数の和:8719

約数の個数: 40

約数和(自身を含む): 603387720

約数和(自身を除く): 344562680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 6224, 7780, 8317, 15560, 16634, 31120, 33268, 41585, 66536, 83170, 133072, 166340, 332680, 665360, 3235313, 6470626, 12941252, 16176565, 25882504, 32353130, 51765008, 64706260, 129412520, 258825040]

約数ペア:

[(1, 258825040), (2, 129412520), (4, 64706260), (5, 51765008), (8, 32353130), (10, 25882504), (16, 16176565), (20, 12941252), (40, 6470626), (80, 3235313), (389, 665360), (778, 332680), (1556, 166340), (1945, 133072), (3112, 83170), (3890, 66536), (6224, 41585), (7780, 33268), (8317, 31120), (15560, 16634)]