31496240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23159}}^1$

素因数の和:23189

約数の個数: 40

約数和(自身を含む): 77539680

約数和(自身を除く): 46043440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 23159, 46318, 92636, 115795, 185272, 231590, 370544, 393703, 463180, 787406, 926360, 1574812, 1852720, 1968515, 3149624, 3937030, 6299248, 7874060, 15748120, 31496240]

約数ペア:

[(1, 31496240), (2, 15748120), (4, 7874060), (5, 6299248), (8, 3937030), (10, 3149624), (16, 1968515), (17, 1852720), (20, 1574812), (34, 926360), (40, 787406), (68, 463180), (80, 393703), (85, 370544), (136, 231590), (170, 185272), (272, 115795), (340, 92636), (680, 46318), (1360, 23159)]