1978648

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 4298400

約数和(自身を除く): 2319752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 397, 623, 712, 794, 1246, 1588, 2492, 2779, 3176, 4984, 5558, 11116, 22232, 35333, 70666, 141332, 247331, 282664, 494662, 989324, 1978648]

約数ペア:

[(1, 1978648), (2, 989324), (4, 494662), (7, 282664), (8, 247331), (14, 141332), (28, 70666), (56, 35333), (89, 22232), (178, 11116), (356, 5558), (397, 4984), (623, 3176), (712, 2779), (794, 2492), (1246, 1588)]