1640900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:344

約数の個数: 36

約数和(自身を含む): 3632580

約数和(自身を除く): 1991680

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 269, 305, 538, 610, 1076, 1220, 1345, 1525, 2690, 3050, 5380, 6100, 6725, 13450, 16409, 26900, 32818, 65636, 82045, 164090, 328180, 410225, 820450, 1640900]

約数ペア:

[(1, 1640900), (2, 820450), (4, 410225), (5, 328180), (10, 164090), (20, 82045), (25, 65636), (50, 32818), (61, 26900), (100, 16409), (122, 13450), (244, 6725), (269, 6100), (305, 5380), (538, 3050), (610, 2690), (1076, 1525), (1220, 1345)]