999790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 32

約数和(自身を含む): 2008800

約数和(自身を除く): 1009010

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 149, 298, 305, 610, 671, 745, 1342, 1490, 1639, 3278, 3355, 6710, 8195, 9089, 16390, 18178, 45445, 90890, 99979, 199958, 499895, 999790]

約数ペア:

[(1, 999790), (2, 499895), (5, 199958), (10, 99979), (11, 90890), (22, 45445), (55, 18178), (61, 16390), (110, 9089), (122, 8195), (149, 6710), (298, 3355), (305, 3278), (610, 1639), (671, 1490), (745, 1342)]