28013025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 49711104

約数和(自身を除く): 21698079

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 127, 173, 255, 381, 425, 519, 635, 865, 1275, 1905, 2159, 2595, 2941, 3175, 4325, 6477, 8823, 9525, 10795, 12975, 14705, 21971, 32385, 44115, 53975, 65913, 73525, 109855, 161925, 220575, 329565, 373507, 549275, 1120521, 1647825, 1867535, 5602605, 9337675, 28013025]

約数ペア:

[(1, 28013025), (3, 9337675), (5, 5602605), (15, 1867535), (17, 1647825), (25, 1120521), (51, 549275), (75, 373507), (85, 329565), (127, 220575), (173, 161925), (255, 109855), (381, 73525), (425, 65913), (519, 53975), (635, 44115), (865, 32385), (1275, 21971), (1905, 14705), (2159, 12975), (2595, 10795), (2941, 9525), (3175, 8823), (4325, 6477)]