18998970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{659}}^1$

素因数の和:731

約数の個数: 48

約数和(自身を含む): 47187360

約数和(自身を除く): 28188390

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 659, 930, 961, 1318, 1922, 1977, 2883, 3295, 3954, 4805, 5766, 6590, 9610, 9885, 14415, 19770, 20429, 28830, 40858, 61287, 102145, 122574, 204290, 306435, 612870, 633299, 1266598, 1899897, 3166495, 3799794, 6332990, 9499485, 18998970]

約数ペア:

[(1, 18998970), (2, 9499485), (3, 6332990), (5, 3799794), (6, 3166495), (10, 1899897), (15, 1266598), (30, 633299), (31, 612870), (62, 306435), (93, 204290), (155, 122574), (186, 102145), (310, 61287), (465, 40858), (659, 28830), (930, 20429), (961, 19770), (1318, 14415), (1922, 9885), (1977, 9610), (2883, 6590), (3295, 5766), (3954, 4805)]