18554830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2033

約数の個数: 48

約数和(自身を含む): 40916880

約数和(自身を除く): 22362050

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 1993, 3986, 4655, 9310, 9965, 13951, 19930, 27902, 37867, 69755, 75734, 97657, 139510, 189335, 195314, 265069, 378670, 488285, 530138, 976570, 1325345, 1855483, 2650690, 3710966, 9277415, 18554830]

約数ペア:

[(1, 18554830), (2, 9277415), (5, 3710966), (7, 2650690), (10, 1855483), (14, 1325345), (19, 976570), (35, 530138), (38, 488285), (49, 378670), (70, 265069), (95, 195314), (98, 189335), (133, 139510), (190, 97657), (245, 75734), (266, 69755), (490, 37867), (665, 27902), (931, 19930), (1330, 13951), (1862, 9965), (1993, 9310), (3986, 4655)]