71991560

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{2917}}^1$

素因数の和:3545

約数の個数: 32

約数和(自身を含む): 162299160

約数和(自身を除く): 90307600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 2917, 3085, 4936, 5834, 6170, 11668, 12340, 14585, 23336, 24680, 29170, 58340, 116680, 1799789, 3599578, 7199156, 8998945, 14398312, 17997890, 35995780, 71991560]

約数ペア:

[(1, 71991560), (2, 35995780), (4, 17997890), (5, 14398312), (8, 8998945), (10, 7199156), (20, 3599578), (40, 1799789), (617, 116680), (1234, 58340), (2468, 29170), (2917, 24680), (3085, 23336), (4936, 14585), (5834, 12340), (6170, 11668)]