9979750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 21565440

約数和(自身を除く): 11585690

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 125, 190, 191, 209, 250, 275, 382, 418, 475, 550, 950, 955, 1045, 1375, 1910, 2090, 2101, 2375, 2750, 3629, 4202, 4750, 4775, 5225, 7258, 9550, 10450, 10505, 18145, 21010, 23875, 26125, 36290, 39919, 47750, 52250, 52525, 79838, 90725, 105050, 181450, 199595, 262625, 399190, 453625, 525250, 907250, 997975, 1995950, 4989875, 9979750]

約数ペア:

[(1, 9979750), (2, 4989875), (5, 1995950), (10, 997975), (11, 907250), (19, 525250), (22, 453625), (25, 399190), (38, 262625), (50, 199595), (55, 181450), (95, 105050), (110, 90725), (125, 79838), (190, 52525), (191, 52250), (209, 47750), (250, 39919), (275, 36290), (382, 26125), (418, 23875), (475, 21010), (550, 18145), (950, 10505), (955, 10450), (1045, 9550), (1375, 7258), (1910, 5225), (2090, 4775), (2101, 4750), (2375, 4202), (2750, 3629)]