256429250

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{173}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 617335992

約数和(自身を除く): 360906742

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 49, 50, 55, 70, 77, 98, 110, 121, 125, 154, 173, 175, 242, 245, 250, 275, 346, 350, 385, 490, 539, 550, 605, 770, 847, 865, 875, 1078, 1210, 1211, 1225, 1375, 1694, 1730, 1750, 1903, 1925, 2422, 2450, 2695, 2750, 3025, 3806, 3850, 4235, 4325, 5390, 5929, 6050, 6055, 6125, 8470, 8477, 8650, 9515, 9625, 11858, 12110, 12250, 13321, 13475, 15125, 16954, 19030, 19250, 20933, 21175, 21625, 26642, 26950, 29645, 30250, 30275, 41866, 42350, 42385, 43250, 47575, 59290, 60550, 66605, 67375, 84770, 93247, 95150, 104665, 105875, 133210, 134750, 146531, 148225, 151375, 186494, 209330, 211750, 211925, 237875, 293062, 296450, 302750, 333025, 423850, 466235, 475750, 523325, 666050, 732655, 741125, 932470, 1025717, 1046650, 1059625, 1465310, 1482250, 1665125, 2051434, 2119250, 2331175, 2616625, 3330250, 3663275, 4662350, 5128585, 5233250, 7326550, 10257170, 11655875, 18316375, 23311750, 25642925, 36632750, 51285850, 128214625, 256429250]

約数ペア:

[(1, 256429250), (2, 128214625), (5, 51285850), (7, 36632750), (10, 25642925), (11, 23311750), (14, 18316375), (22, 11655875), (25, 10257170), (35, 7326550), (49, 5233250), (50, 5128585), (55, 4662350), (70, 3663275), (77, 3330250), (98, 2616625), (110, 2331175), (121, 2119250), (125, 2051434), (154, 1665125), (173, 1482250), (175, 1465310), (242, 1059625), (245, 1046650), (250, 1025717), (275, 932470), (346, 741125), (350, 732655), (385, 666050), (490, 523325), (539, 475750), (550, 466235), (605, 423850), (770, 333025), (847, 302750), (865, 296450), (875, 293062), (1078, 237875), (1210, 211925), (1211, 211750), (1225, 209330), (1375, 186494), (1694, 151375), (1730, 148225), (1750, 146531), (1903, 134750), (1925, 133210), (2422, 105875), (2450, 104665), (2695, 95150), (2750, 93247), (3025, 84770), (3806, 67375), (3850, 66605), (4235, 60550), (4325, 59290), (5390, 47575), (5929, 43250), (6050, 42385), (6055, 42350), (6125, 41866), (8470, 30275), (8477, 30250), (8650, 29645), (9515, 26950), (9625, 26642), (11858, 21625), (12110, 21175), (12250, 20933), (13321, 19250), (13475, 19030), (15125, 16954)]