189968680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{4451}}^1$

素因数の和:4570

約数の個数: 64

約数和(自身を含む): 471199680

約数和(自身を除く): 281231000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 220, 388, 440, 485, 776, 970, 1067, 1940, 2134, 3880, 4268, 4451, 5335, 8536, 8902, 10670, 17804, 21340, 22255, 35608, 42680, 44510, 48961, 89020, 97922, 178040, 195844, 244805, 391688, 431747, 489610, 863494, 979220, 1726988, 1958440, 2158735, 3453976, 4317470, 4749217, 8634940, 9498434, 17269880, 18996868, 23746085, 37993736, 47492170, 94984340, 189968680]

約数ペア:

[(1, 189968680), (2, 94984340), (4, 47492170), (5, 37993736), (8, 23746085), (10, 18996868), (11, 17269880), (20, 9498434), (22, 8634940), (40, 4749217), (44, 4317470), (55, 3453976), (88, 2158735), (97, 1958440), (110, 1726988), (194, 979220), (220, 863494), (388, 489610), (440, 431747), (485, 391688), (776, 244805), (970, 195844), (1067, 178040), (1940, 97922), (2134, 89020), (3880, 48961), (4268, 44510), (4451, 42680), (5335, 35608), (8536, 22255), (8902, 21340), (10670, 17804)]