19801470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{50773}}^1$

素因数の和:50796

約数の個数: 32

約数和(自身を含む): 51180192

約数和(自身を除く): 31378722

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 50773, 101546, 152319, 253865, 304638, 507730, 660049, 761595, 1320098, 1523190, 1980147, 3300245, 3960294, 6600490, 9900735, 19801470]

約数ペア:

[(1, 19801470), (2, 9900735), (3, 6600490), (5, 3960294), (6, 3300245), (10, 1980147), (13, 1523190), (15, 1320098), (26, 761595), (30, 660049), (39, 507730), (65, 304638), (78, 253865), (130, 152319), (195, 101546), (390, 50773)]