18900090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1123}}^1$

素因数の和:1164

約数の個数: 96

約数和(自身を含む): 56811456

約数和(自身を除く): 37911366

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 17, 18, 22, 30, 33, 34, 45, 51, 55, 66, 85, 90, 99, 102, 110, 153, 165, 170, 187, 198, 255, 306, 330, 374, 495, 510, 561, 765, 935, 990, 1122, 1123, 1530, 1683, 1870, 2246, 2805, 3366, 3369, 5610, 5615, 6738, 8415, 10107, 11230, 12353, 16830, 16845, 19091, 20214, 24706, 33690, 37059, 38182, 50535, 57273, 61765, 74118, 95455, 101070, 111177, 114546, 123530, 171819, 185295, 190910, 210001, 222354, 286365, 343638, 370590, 420002, 555885, 572730, 630003, 859095, 1050005, 1111770, 1260006, 1718190, 1890009, 2100010, 3150015, 3780018, 6300030, 9450045, 18900090]

約数ペア:

[(1, 18900090), (2, 9450045), (3, 6300030), (5, 3780018), (6, 3150015), (9, 2100010), (10, 1890009), (11, 1718190), (15, 1260006), (17, 1111770), (18, 1050005), (22, 859095), (30, 630003), (33, 572730), (34, 555885), (45, 420002), (51, 370590), (55, 343638), (66, 286365), (85, 222354), (90, 210001), (99, 190910), (102, 185295), (110, 171819), (153, 123530), (165, 114546), (170, 111177), (187, 101070), (198, 95455), (255, 74118), (306, 61765), (330, 57273), (374, 50535), (495, 38182), (510, 37059), (561, 33690), (765, 24706), (935, 20214), (990, 19091), (1122, 16845), (1123, 16830), (1530, 12353), (1683, 11230), (1870, 10107), (2246, 8415), (2805, 6738), (3366, 5615), (3369, 5610)]