71642620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1289}}^1$

素因数の和:1702

約数の個数: 48

約数和(自身を含む): 172509120

約数和(自身を除く): 100866500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 1289, 1588, 1985, 2578, 2779, 3970, 5156, 5558, 6445, 7940, 9023, 11116, 12890, 13895, 18046, 25780, 27790, 36092, 45115, 55580, 90230, 180460, 511733, 1023466, 2046932, 2558665, 3582131, 5117330, 7164262, 10234660, 14328524, 17910655, 35821310, 71642620]

約数ペア:

[(1, 71642620), (2, 35821310), (4, 17910655), (5, 14328524), (7, 10234660), (10, 7164262), (14, 5117330), (20, 3582131), (28, 2558665), (35, 2046932), (70, 1023466), (140, 511733), (397, 180460), (794, 90230), (1289, 55580), (1588, 45115), (1985, 36092), (2578, 27790), (2779, 25780), (3970, 18046), (5156, 13895), (5558, 12890), (6445, 11116), (7940, 9023)]