251969920

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23159}}^1$

素因数の和:23195

約数の個数: 64

約数和(自身を含む): 637826400

約数和(自身を除く): 385856480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 10880, 23159, 46318, 92636, 115795, 185272, 231590, 370544, 393703, 463180, 741088, 787406, 926360, 1482176, 1574812, 1852720, 1968515, 2964352, 3149624, 3705440, 3937030, 6299248, 7410880, 7874060, 12598496, 14821760, 15748120, 25196992, 31496240, 50393984, 62992480, 125984960, 251969920]

約数ペア:

[(1, 251969920), (2, 125984960), (4, 62992480), (5, 50393984), (8, 31496240), (10, 25196992), (16, 15748120), (17, 14821760), (20, 12598496), (32, 7874060), (34, 7410880), (40, 6299248), (64, 3937030), (68, 3705440), (80, 3149624), (85, 2964352), (128, 1968515), (136, 1852720), (160, 1574812), (170, 1482176), (272, 926360), (320, 787406), (340, 741088), (544, 463180), (640, 393703), (680, 370544), (1088, 231590), (1360, 185272), (2176, 115795), (2720, 92636), (5440, 46318), (10880, 23159)]