31201520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{55717}}^1$

素因数の和:55737

約数の個数: 40

約数和(自身を含む): 82908384

約数和(自身を除く): 51706864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 55717, 111434, 222868, 278585, 390019, 445736, 557170, 780038, 891472, 1114340, 1560076, 1950095, 2228680, 3120152, 3900190, 4457360, 6240304, 7800380, 15600760, 31201520]

約数ペア:

[(1, 31201520), (2, 15600760), (4, 7800380), (5, 6240304), (7, 4457360), (8, 3900190), (10, 3120152), (14, 2228680), (16, 1950095), (20, 1560076), (28, 1114340), (35, 891472), (40, 780038), (56, 557170), (70, 445736), (80, 390019), (112, 278585), (140, 222868), (280, 111434), (560, 55717)]