18537380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 41610240

約数和(自身を除く): 23072860

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1031, 1798, 2062, 3596, 4124, 4495, 5155, 8990, 10310, 17980, 20620, 29899, 31961, 59798, 63922, 119596, 127844, 149495, 159805, 298990, 319610, 597980, 639220, 926869, 1853738, 3707476, 4634345, 9268690, 18537380]

約数ペア:

[(1, 18537380), (2, 9268690), (4, 4634345), (5, 3707476), (10, 1853738), (20, 926869), (29, 639220), (31, 597980), (58, 319610), (62, 298990), (116, 159805), (124, 149495), (145, 127844), (155, 119596), (290, 63922), (310, 59798), (580, 31961), (620, 29899), (899, 20620), (1031, 17980), (1798, 10310), (2062, 8990), (3596, 5155), (4124, 4495)]