991690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:502

約数の個数: 32

約数和(自身を含む): 2110464

約数和(自身を除く): 1118774

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 457, 914, 1085, 2170, 2285, 3199, 4570, 6398, 14167, 15995, 28334, 31990, 70835, 99169, 141670, 198338, 495845, 991690]

約数ペア:

[(1, 991690), (2, 495845), (5, 198338), (7, 141670), (10, 99169), (14, 70835), (31, 31990), (35, 28334), (62, 15995), (70, 14167), (155, 6398), (217, 4570), (310, 3199), (434, 2285), (457, 2170), (914, 1085)]