31210720

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2011}}^1$

素因数の和:2123

約数の個数: 48

約数和(自身を含む): 74532528

約数和(自身を除く): 43321808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 2011, 3104, 3880, 4022, 7760, 8044, 10055, 15520, 16088, 20110, 32176, 40220, 64352, 80440, 160880, 195067, 321760, 390134, 780268, 975335, 1560536, 1950670, 3121072, 3901340, 6242144, 7802680, 15605360, 31210720]

約数ペア:

[(1, 31210720), (2, 15605360), (4, 7802680), (5, 6242144), (8, 3901340), (10, 3121072), (16, 1950670), (20, 1560536), (32, 975335), (40, 780268), (80, 390134), (97, 321760), (160, 195067), (194, 160880), (388, 80440), (485, 64352), (776, 40220), (970, 32176), (1552, 20110), (1940, 16088), (2011, 15520), (3104, 10055), (3880, 8044), (4022, 7760)]