1720860040

素因数分解:

$2^3\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{22051}}^1$

素因数の和:24013

約数の個数: 32

約数和(自身を含む): 3874095360

約数和(自身を除く): 2153235320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1951, 3902, 7804, 9755, 15608, 19510, 22051, 39020, 44102, 78040, 88204, 110255, 176408, 220510, 441020, 882040, 43021501, 86043002, 172086004, 215107505, 344172008, 430215010, 860430020, 1720860040]

約数ペア:

[(1, 1720860040), (2, 860430020), (4, 430215010), (5, 344172008), (8, 215107505), (10, 172086004), (20, 86043002), (40, 43021501), (1951, 882040), (3902, 441020), (7804, 220510), (9755, 176408), (15608, 110255), (19510, 88204), (22051, 78040), (39020, 44102)]