90193880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10391}}^1$

素因数の和:10440

約数の個数: 64

約数和(自身を含む): 239431680

約数和(自身を除く): 149237800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 10391, 20782, 41564, 51955, 72737, 83128, 103910, 145474, 207820, 290948, 322121, 363685, 415640, 581896, 644242, 727370, 1288484, 1454740, 1610605, 2254847, 2576968, 2909480, 3221210, 4509694, 6442420, 9019388, 11274235, 12884840, 18038776, 22548470, 45096940, 90193880]

約数ペア:

[(1, 90193880), (2, 45096940), (4, 22548470), (5, 18038776), (7, 12884840), (8, 11274235), (10, 9019388), (14, 6442420), (20, 4509694), (28, 3221210), (31, 2909480), (35, 2576968), (40, 2254847), (56, 1610605), (62, 1454740), (70, 1288484), (124, 727370), (140, 644242), (155, 581896), (217, 415640), (248, 363685), (280, 322121), (310, 290948), (434, 207820), (620, 145474), (868, 103910), (1085, 83128), (1240, 72737), (1736, 51955), (2170, 41564), (4340, 20782), (8680, 10391)]