642541545

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{4003}}^1$

素因数の和:4087

約数の個数: 64

約数和(自身を含む): 1210809600

約数和(自身を除く): 568268055

約数列:

[1, 3, 5, 9, 15, 27, 29, 41, 45, 87, 123, 135, 145, 205, 261, 369, 435, 615, 783, 1107, 1189, 1305, 1845, 3567, 3915, 4003, 5535, 5945, 10701, 12009, 17835, 20015, 32103, 36027, 53505, 60045, 108081, 116087, 160515, 164123, 180135, 348261, 492369, 540405, 580435, 820615, 1044783, 1477107, 1741305, 2461845, 3134349, 4431321, 4759567, 5223915, 7385535, 14278701, 15671745, 22156605, 23797835, 42836103, 71393505, 128508309, 214180515, 642541545]

約数ペア:

[(1, 642541545), (3, 214180515), (5, 128508309), (9, 71393505), (15, 42836103), (27, 23797835), (29, 22156605), (41, 15671745), (45, 14278701), (87, 7385535), (123, 5223915), (135, 4759567), (145, 4431321), (205, 3134349), (261, 2461845), (369, 1741305), (435, 1477107), (615, 1044783), (783, 820615), (1107, 580435), (1189, 540405), (1305, 492369), (1845, 348261), (3567, 180135), (3915, 164123), (4003, 160515), (5535, 116087), (5945, 108081), (10701, 60045), (12009, 53505), (17835, 36027), (20015, 32103)]