40398890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18617}}^1$

素因数の和:18662

約数の個数: 32

約数和(自身を含む): 85791744

約数和(自身を除く): 45392854

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 18617, 37234, 93085, 130319, 186170, 260638, 577127, 651595, 1154254, 1303190, 2885635, 4039889, 5771270, 8079778, 20199445, 40398890]

約数ペア:

[(1, 40398890), (2, 20199445), (5, 8079778), (7, 5771270), (10, 4039889), (14, 2885635), (31, 1303190), (35, 1154254), (62, 651595), (70, 577127), (155, 260638), (217, 186170), (310, 130319), (434, 93085), (1085, 37234), (2170, 18617)]