39912940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1319}}^1$

素因数の和:1434

約数の個数: 48

約数和(自身を含む): 89812800

約数和(自身を除く): 49899860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 1319, 1513, 1780, 2638, 3026, 5276, 6052, 6595, 7565, 13190, 15130, 22423, 26380, 30260, 44846, 89692, 112115, 117391, 224230, 234782, 448460, 469564, 586955, 1173910, 1995647, 2347820, 3991294, 7982588, 9978235, 19956470, 39912940]

約数ペア:

[(1, 39912940), (2, 19956470), (4, 9978235), (5, 7982588), (10, 3991294), (17, 2347820), (20, 1995647), (34, 1173910), (68, 586955), (85, 469564), (89, 448460), (170, 234782), (178, 224230), (340, 117391), (356, 112115), (445, 89692), (890, 44846), (1319, 30260), (1513, 26380), (1780, 22423), (2638, 15130), (3026, 13190), (5276, 7565), (6052, 6595)]