202598020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 448422912

約数和(自身を除く): 245824892

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 127, 155, 166, 254, 310, 332, 415, 508, 620, 635, 830, 961, 1270, 1660, 1922, 2540, 2573, 3844, 3937, 4805, 5146, 7874, 9610, 10292, 10541, 12865, 15748, 19220, 19685, 21082, 25730, 39370, 42164, 51460, 52705, 78740, 79763, 105410, 122047, 159526, 210820, 244094, 319052, 326771, 398815, 488188, 610235, 653542, 797630, 1220470, 1307084, 1595260, 1633855, 2440940, 3267710, 6535420, 10129901, 20259802, 40519604, 50649505, 101299010, 202598020]

約数ペア:

[(1, 202598020), (2, 101299010), (4, 50649505), (5, 40519604), (10, 20259802), (20, 10129901), (31, 6535420), (62, 3267710), (83, 2440940), (124, 1633855), (127, 1595260), (155, 1307084), (166, 1220470), (254, 797630), (310, 653542), (332, 610235), (415, 488188), (508, 398815), (620, 326771), (635, 319052), (830, 244094), (961, 210820), (1270, 159526), (1660, 122047), (1922, 105410), (2540, 79763), (2573, 78740), (3844, 52705), (3937, 51460), (4805, 42164), (5146, 39370), (7874, 25730), (9610, 21082), (10292, 19685), (10541, 19220), (12865, 15748)]