31431480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2543}}^1$

素因数の和:2660

約数の個数: 64

約数和(自身を含む): 95247360

約数和(自身を除く): 63815880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 2060, 2472, 2543, 3090, 4120, 5086, 6180, 7629, 10172, 12360, 12715, 15258, 20344, 25430, 30516, 38145, 50860, 61032, 76290, 101720, 152580, 261929, 305160, 523858, 785787, 1047716, 1309645, 1571574, 2095432, 2619290, 3143148, 3928935, 5238580, 6286296, 7857870, 10477160, 15715740, 31431480]

約数ペア:

[(1, 31431480), (2, 15715740), (3, 10477160), (4, 7857870), (5, 6286296), (6, 5238580), (8, 3928935), (10, 3143148), (12, 2619290), (15, 2095432), (20, 1571574), (24, 1309645), (30, 1047716), (40, 785787), (60, 523858), (103, 305160), (120, 261929), (206, 152580), (309, 101720), (412, 76290), (515, 61032), (618, 50860), (824, 38145), (1030, 30516), (1236, 25430), (1545, 20344), (2060, 15258), (2472, 12715), (2543, 12360), (3090, 10172), (4120, 7629), (5086, 6180)]