2586020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 5795328

約数和(自身を除く): 3209308

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 97, 124, 155, 172, 194, 215, 310, 388, 430, 485, 620, 860, 970, 1333, 1940, 2666, 3007, 4171, 5332, 6014, 6665, 8342, 12028, 13330, 15035, 16684, 20855, 26660, 30070, 41710, 60140, 83420, 129301, 258602, 517204, 646505, 1293010, 2586020]

約数ペア:

[(1, 2586020), (2, 1293010), (4, 646505), (5, 517204), (10, 258602), (20, 129301), (31, 83420), (43, 60140), (62, 41710), (86, 30070), (97, 26660), (124, 20855), (155, 16684), (172, 15035), (194, 13330), (215, 12028), (310, 8342), (388, 6665), (430, 6014), (485, 5332), (620, 4171), (860, 3007), (970, 2666), (1333, 1940)]