80211880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9241}}^1$

素因数の和:9290

約数の個数: 64

約数和(自身を含む): 212935680

約数和(自身を除く): 132723800

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, 9241, 18482, 36964, 46205, 64687, 73928, 92410, 129374, 184820, 258748, 286471, 323435, 369640, 517496, 572942, 646870, 1145884, 1293740, 1432355, 2005297, 2291768, 2587480, 2864710, 4010594, 5729420, 8021188, 10026485, 11458840, 16042376, 20052970, 40105940, 80211880]

約数ペア:

[(1, 80211880), (2, 40105940), (4, 20052970), (5, 16042376), (7, 11458840), (8, 10026485), (10, 8021188), (14, 5729420), (20, 4010594), (28, 2864710), (31, 2587480), (35, 2291768), (40, 2005297), (56, 1432355), (62, 1293740), (70, 1145884), (124, 646870), (140, 572942), (155, 517496), (217, 369640), (248, 323435), (280, 286471), (310, 258748), (434, 184820), (620, 129374), (868, 92410), (1085, 73928), (1240, 64687), (1736, 46205), (2170, 36964), (4340, 18482), (8680, 9241)]