201973420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:479

約数の個数: 96

約数和(自身を含む): 491500800

約数和(自身を除く): 289527380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 211, 220, 229, 380, 418, 422, 458, 836, 844, 916, 1045, 1055, 1145, 2090, 2110, 2290, 2321, 2519, 4009, 4180, 4220, 4351, 4580, 4642, 5038, 8018, 8702, 9284, 10076, 11605, 12595, 16036, 17404, 20045, 21755, 23210, 25190, 40090, 43510, 44099, 46420, 47861, 48319, 50380, 80180, 87020, 88198, 95722, 96638, 176396, 191444, 193276, 220495, 239305, 241595, 440990, 478610, 483190, 531509, 881980, 918061, 957220, 966380, 1063018, 1836122, 2126036, 2657545, 3672244, 4590305, 5315090, 9180610, 10098671, 10630180, 18361220, 20197342, 40394684, 50493355, 100986710, 201973420]

約数ペア:

[(1, 201973420), (2, 100986710), (4, 50493355), (5, 40394684), (10, 20197342), (11, 18361220), (19, 10630180), (20, 10098671), (22, 9180610), (38, 5315090), (44, 4590305), (55, 3672244), (76, 2657545), (95, 2126036), (110, 1836122), (190, 1063018), (209, 966380), (211, 957220), (220, 918061), (229, 881980), (380, 531509), (418, 483190), (422, 478610), (458, 440990), (836, 241595), (844, 239305), (916, 220495), (1045, 193276), (1055, 191444), (1145, 176396), (2090, 96638), (2110, 95722), (2290, 88198), (2321, 87020), (2519, 80180), (4009, 50380), (4180, 48319), (4220, 47861), (4351, 46420), (4580, 44099), (4642, 43510), (5038, 40090), (8018, 25190), (8702, 23210), (9284, 21755), (10076, 20045), (11605, 17404), (12595, 16036)]