7997000

素因数分解:

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

素因数の和:759

約数の個数: 64

約数和(自身を含む): 20442240

約数和(自身を除く): 12445240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 727, 1000, 1100, 1375, 1454, 2200, 2750, 2908, 3635, 5500, 5816, 7270, 7997, 11000, 14540, 15994, 18175, 29080, 31988, 36350, 39985, 63976, 72700, 79970, 90875, 145400, 159940, 181750, 199925, 319880, 363500, 399850, 727000, 799700, 999625, 1599400, 1999250, 3998500, 7997000]

約数ペア:

[(1, 7997000), (2, 3998500), (4, 1999250), (5, 1599400), (8, 999625), (10, 799700), (11, 727000), (20, 399850), (22, 363500), (25, 319880), (40, 199925), (44, 181750), (50, 159940), (55, 145400), (88, 90875), (100, 79970), (110, 72700), (125, 63976), (200, 39985), (220, 36350), (250, 31988), (275, 29080), (440, 18175), (500, 15994), (550, 14540), (727, 11000), (1000, 7997), (1100, 7270), (1375, 5816), (1454, 5500), (2200, 3635), (2750, 2908)]