90086020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1801}}^1$

素因数の和:1912

約数の個数: 48

約数和(自身を含む): 197081136

約数和(自身を除く): 106995116

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 610, 820, 1220, 1801, 2501, 3602, 5002, 7204, 9005, 10004, 12505, 18010, 25010, 36020, 50020, 73841, 109861, 147682, 219722, 295364, 369205, 439444, 549305, 738410, 1098610, 1476820, 2197220, 4504301, 9008602, 18017204, 22521505, 45043010, 90086020]

約数ペア:

[(1, 90086020), (2, 45043010), (4, 22521505), (5, 18017204), (10, 9008602), (20, 4504301), (41, 2197220), (61, 1476820), (82, 1098610), (122, 738410), (164, 549305), (205, 439444), (244, 369205), (305, 295364), (410, 219722), (610, 147682), (820, 109861), (1220, 73841), (1801, 50020), (2501, 36020), (3602, 25010), (5002, 18010), (7204, 12505), (9005, 10004)]