19190025

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 37865880

約数和(自身を除く): 18675855

約数列:

[1, 3, 5, 9, 15, 17, 25, 29, 45, 51, 75, 85, 87, 145, 153, 173, 225, 255, 261, 425, 435, 493, 519, 725, 765, 865, 1275, 1305, 1479, 1557, 2175, 2465, 2595, 2941, 3825, 4325, 4437, 5017, 6525, 7395, 7785, 8823, 12325, 12975, 14705, 15051, 22185, 25085, 26469, 36975, 38925, 44115, 45153, 73525, 75255, 85289, 110925, 125425, 132345, 220575, 225765, 255867, 376275, 426445, 661725, 767601, 1128825, 1279335, 2132225, 3838005, 6396675, 19190025]

約数ペア:

[(1, 19190025), (3, 6396675), (5, 3838005), (9, 2132225), (15, 1279335), (17, 1128825), (25, 767601), (29, 661725), (45, 426445), (51, 376275), (75, 255867), (85, 225765), (87, 220575), (145, 132345), (153, 125425), (173, 110925), (225, 85289), (255, 75255), (261, 73525), (425, 45153), (435, 44115), (493, 38925), (519, 36975), (725, 26469), (765, 25085), (865, 22185), (1275, 15051), (1305, 14705), (1479, 12975), (1557, 12325), (2175, 8823), (2465, 7785), (2595, 7395), (2941, 6525), (3825, 5017), (4325, 4437)]