21656553400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{55331}}^1$

素因数の和:55469

約数の個数: 96

約数和(自身を含む): 53517110400

約数和(自身を除く): 31860557000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 103, 152, 190, 200, 206, 380, 412, 475, 515, 760, 824, 950, 1030, 1900, 1957, 2060, 2575, 3800, 3914, 4120, 5150, 7828, 9785, 10300, 15656, 19570, 20600, 39140, 48925, 55331, 78280, 97850, 110662, 195700, 221324, 276655, 391400, 442648, 553310, 1051289, 1106620, 1383275, 2102578, 2213240, 2766550, 4205156, 5256445, 5533100, 5699093, 8410312, 10512890, 11066200, 11398186, 21025780, 22796372, 26282225, 28495465, 42051560, 45592744, 52564450, 56990930, 105128900, 108282767, 113981860, 142477325, 210257800, 216565534, 227963720, 284954650, 433131068, 541413835, 569909300, 866262136, 1082827670, 1139818600, 2165655340, 2707069175, 4331310680, 5414138350, 10828276700, 21656553400]

約数ペア:

[(1, 21656553400), (2, 10828276700), (4, 5414138350), (5, 4331310680), (8, 2707069175), (10, 2165655340), (19, 1139818600), (20, 1082827670), (25, 866262136), (38, 569909300), (40, 541413835), (50, 433131068), (76, 284954650), (95, 227963720), (100, 216565534), (103, 210257800), (152, 142477325), (190, 113981860), (200, 108282767), (206, 105128900), (380, 56990930), (412, 52564450), (475, 45592744), (515, 42051560), (760, 28495465), (824, 26282225), (950, 22796372), (1030, 21025780), (1900, 11398186), (1957, 11066200), (2060, 10512890), (2575, 8410312), (3800, 5699093), (3914, 5533100), (4120, 5256445), (5150, 4205156), (7828, 2766550), (9785, 2213240), (10300, 2102578), (15656, 1383275), (19570, 1106620), (20600, 1051289), (39140, 553310), (48925, 442648), (55331, 391400), (78280, 276655), (97850, 221324), (110662, 195700)]