18931036120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{121571}}^1$

素因数の和:121828

約数の個数: 64

約数和(自身を含む): 45297727200

約数和(自身を除く): 26366691080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 229, 340, 458, 680, 916, 1145, 1832, 2290, 3893, 4580, 7786, 9160, 15572, 19465, 31144, 38930, 77860, 121571, 155720, 243142, 486284, 607855, 972568, 1215710, 2066707, 2431420, 4133414, 4862840, 8266828, 10333535, 16533656, 20667070, 27839759, 41334140, 55679518, 82668280, 111359036, 139198795, 222718072, 278397590, 473275903, 556795180, 946551806, 1113590360, 1893103612, 2366379515, 3786207224, 4732759030, 9465518060, 18931036120]

約数ペア:

[(1, 18931036120), (2, 9465518060), (4, 4732759030), (5, 3786207224), (8, 2366379515), (10, 1893103612), (17, 1113590360), (20, 946551806), (34, 556795180), (40, 473275903), (68, 278397590), (85, 222718072), (136, 139198795), (170, 111359036), (229, 82668280), (340, 55679518), (458, 41334140), (680, 27839759), (916, 20667070), (1145, 16533656), (1832, 10333535), (2290, 8266828), (3893, 4862840), (4580, 4133414), (7786, 2431420), (9160, 2066707), (15572, 1215710), (19465, 972568), (31144, 607855), (38930, 486284), (77860, 243142), (121571, 155720)]