2150860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 4812192

約数和(自身を除く): 2661332

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 61, 82, 86, 122, 164, 172, 205, 215, 244, 305, 410, 430, 610, 820, 860, 1220, 1763, 2501, 2623, 3526, 5002, 5246, 7052, 8815, 10004, 10492, 12505, 13115, 17630, 25010, 26230, 35260, 50020, 52460, 107543, 215086, 430172, 537715, 1075430, 2150860]

約数ペア:

[(1, 2150860), (2, 1075430), (4, 537715), (5, 430172), (10, 215086), (20, 107543), (41, 52460), (43, 50020), (61, 35260), (82, 26230), (86, 25010), (122, 17630), (164, 13115), (172, 12505), (205, 10492), (215, 10004), (244, 8815), (305, 7052), (410, 5246), (430, 5002), (610, 3526), (820, 2623), (860, 2501), (1220, 1763)]