81989470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{5419}}^1$

素因数の和:5532

約数の個数: 32

約数和(自身を含む): 158047200

約数和(自身を除く): 76057730

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1513, 3026, 5419, 7565, 10838, 15130, 27095, 54190, 92123, 184246, 460615, 482291, 921230, 964582, 2411455, 4822910, 8198947, 16397894, 40994735, 81989470]

約数ペア:

[(1, 81989470), (2, 40994735), (5, 16397894), (10, 8198947), (17, 4822910), (34, 2411455), (85, 964582), (89, 921230), (170, 482291), (178, 460615), (445, 184246), (890, 92123), (1513, 54190), (3026, 27095), (5419, 15130), (7565, 10838)]