51990100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^2\times {\mathrm{541}}^1$

素因数の和:617

約数の個数: 54

約数和(自身を含む): 116790702

約数和(自身を除く): 64800602

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 541, 620, 775, 961, 1082, 1550, 1922, 2164, 2705, 3100, 3844, 4805, 5410, 9610, 10820, 13525, 16771, 19220, 24025, 27050, 33542, 48050, 54100, 67084, 83855, 96100, 167710, 335420, 419275, 519901, 838550, 1039802, 1677100, 2079604, 2599505, 5199010, 10398020, 12997525, 25995050, 51990100]

約数ペア:

[(1, 51990100), (2, 25995050), (4, 12997525), (5, 10398020), (10, 5199010), (20, 2599505), (25, 2079604), (31, 1677100), (50, 1039802), (62, 838550), (100, 519901), (124, 419275), (155, 335420), (310, 167710), (541, 96100), (620, 83855), (775, 67084), (961, 54100), (1082, 48050), (1550, 33542), (1922, 27050), (2164, 24025), (2705, 19220), (3100, 16771), (3844, 13525), (4805, 10820), (5410, 9610)]