228557780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{25339}}^1$

素因数の和:25400

約数の個数: 48

約数和(自身を含む): 536397120

約数和(自身を除く): 307839340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 25339, 50678, 101356, 126695, 253390, 278729, 506780, 557458, 1038899, 1114916, 1393645, 2077798, 2787290, 4155596, 5194495, 5574580, 10388990, 11427889, 20777980, 22855778, 45711556, 57139445, 114278890, 228557780]

約数ペア:

[(1, 228557780), (2, 114278890), (4, 57139445), (5, 45711556), (10, 22855778), (11, 20777980), (20, 11427889), (22, 10388990), (41, 5574580), (44, 5194495), (55, 4155596), (82, 2787290), (110, 2077798), (164, 1393645), (205, 1114916), (220, 1038899), (410, 557458), (451, 506780), (820, 278729), (902, 253390), (1804, 126695), (2255, 101356), (4510, 50678), (9020, 25339)]