28789390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{13267}}^1$

素因数の和:13312

約数の個数: 32

約数和(自身を含む): 61138944

約数和(自身を除く): 32349554

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 13267, 26534, 66335, 92869, 132670, 185738, 411277, 464345, 822554, 928690, 2056385, 2878939, 4112770, 5757878, 14394695, 28789390]

約数ペア:

[(1, 28789390), (2, 14394695), (5, 5757878), (7, 4112770), (10, 2878939), (14, 2056385), (31, 928690), (35, 822554), (62, 464345), (70, 411277), (155, 185738), (217, 132670), (310, 92869), (434, 66335), (1085, 26534), (2170, 13267)]