18891250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:173

約数の個数: 80

約数和(自身を含む): 43186176

約数和(自身を除く): 24294926

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 50, 70, 85, 119, 125, 127, 170, 175, 238, 250, 254, 350, 425, 595, 625, 635, 850, 875, 889, 1190, 1250, 1270, 1750, 1778, 2125, 2159, 2975, 3175, 4250, 4318, 4375, 4445, 5950, 6350, 8750, 8890, 10625, 10795, 14875, 15113, 15875, 21250, 21590, 22225, 29750, 30226, 31750, 44450, 53975, 74375, 75565, 79375, 107950, 111125, 148750, 151130, 158750, 222250, 269875, 377825, 539750, 555625, 755650, 1111250, 1349375, 1889125, 2698750, 3778250, 9445625, 18891250]

約数ペア:

[(1, 18891250), (2, 9445625), (5, 3778250), (7, 2698750), (10, 1889125), (14, 1349375), (17, 1111250), (25, 755650), (34, 555625), (35, 539750), (50, 377825), (70, 269875), (85, 222250), (119, 158750), (125, 151130), (127, 148750), (170, 111125), (175, 107950), (238, 79375), (250, 75565), (254, 74375), (350, 53975), (425, 44450), (595, 31750), (625, 30226), (635, 29750), (850, 22225), (875, 21590), (889, 21250), (1190, 15875), (1250, 15113), (1270, 14875), (1750, 10795), (1778, 10625), (2125, 8890), (2159, 8750), (2975, 6350), (3175, 5950), (4250, 4445), (4318, 4375)]