3998500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{727}}^1$

素因数の和:757

約数の個数: 48

約数和(自身を含む): 9539712

約数和(自身を除く): 5541212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 727, 1100, 1375, 1454, 2750, 2908, 3635, 5500, 7270, 7997, 14540, 15994, 18175, 31988, 36350, 39985, 72700, 79970, 90875, 159940, 181750, 199925, 363500, 399850, 799700, 999625, 1999250, 3998500]

約数ペア:

[(1, 3998500), (2, 1999250), (4, 999625), (5, 799700), (10, 399850), (11, 363500), (20, 199925), (22, 181750), (25, 159940), (44, 90875), (50, 79970), (55, 72700), (100, 39985), (110, 36350), (125, 31988), (220, 18175), (250, 15994), (275, 14540), (500, 7997), (550, 7270), (727, 5500), (1100, 3635), (1375, 2908), (1454, 2750)]