1625140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 3810240

約数和(自身を除く): 2185100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 89, 110, 166, 178, 220, 332, 356, 415, 445, 830, 890, 913, 979, 1660, 1780, 1826, 1958, 3652, 3916, 4565, 4895, 7387, 9130, 9790, 14774, 18260, 19580, 29548, 36935, 73870, 81257, 147740, 162514, 325028, 406285, 812570, 1625140]

約数ペア:

[(1, 1625140), (2, 812570), (4, 406285), (5, 325028), (10, 162514), (11, 147740), (20, 81257), (22, 73870), (44, 36935), (55, 29548), (83, 19580), (89, 18260), (110, 14774), (166, 9790), (178, 9130), (220, 7387), (332, 4895), (356, 4565), (415, 3916), (445, 3652), (830, 1958), (890, 1826), (913, 1780), (979, 1660)]