19238020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 42865200

約数和(自身を除く): 23627180

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 809, 820, 1189, 1618, 2378, 3236, 4045, 4756, 5945, 8090, 11890, 16180, 23461, 23780, 33169, 46922, 66338, 93844, 117305, 132676, 165845, 234610, 331690, 469220, 663380, 961901, 1923802, 3847604, 4809505, 9619010, 19238020]

約数ペア:

[(1, 19238020), (2, 9619010), (4, 4809505), (5, 3847604), (10, 1923802), (20, 961901), (29, 663380), (41, 469220), (58, 331690), (82, 234610), (116, 165845), (145, 132676), (164, 117305), (205, 93844), (290, 66338), (410, 46922), (580, 33169), (809, 23780), (820, 23461), (1189, 16180), (1618, 11890), (2378, 8090), (3236, 5945), (4045, 4756)]