18930010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 40310784

約数和(自身を除く): 21380774

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 53, 55, 85, 106, 110, 170, 187, 191, 265, 374, 382, 530, 583, 901, 935, 955, 1166, 1802, 1870, 1910, 2101, 2915, 3247, 4202, 4505, 5830, 6494, 9010, 9911, 10123, 10505, 16235, 19822, 20246, 21010, 32470, 35717, 49555, 50615, 71434, 99110, 101230, 111353, 172091, 178585, 222706, 344182, 357170, 556765, 860455, 1113530, 1720910, 1893001, 3786002, 9465005, 18930010]

約数ペア:

[(1, 18930010), (2, 9465005), (5, 3786002), (10, 1893001), (11, 1720910), (17, 1113530), (22, 860455), (34, 556765), (53, 357170), (55, 344182), (85, 222706), (106, 178585), (110, 172091), (170, 111353), (187, 101230), (191, 99110), (265, 71434), (374, 50615), (382, 49555), (530, 35717), (583, 32470), (901, 21010), (935, 20246), (955, 19822), (1166, 16235), (1802, 10505), (1870, 10123), (1910, 9911), (2101, 9010), (2915, 6494), (3247, 5830), (4202, 4505)]