About the Number

201321890

201321889 ← → 201321891

2進数表記:1011111111111110110110100010

漢数字表記:二億百三十二万千八百九十

素因数分解:

2 1 × 5 1 × 7 2 × 11 1 × 41 1 × 911 1

素因数の和:984
約数の個数: 96
約数和(自身を含む): 471598848
約数和(自身を除く): 270276958

約数列:
[1, 2, 5, 7, 10, 11, 14, 22, 35, 41, 49, 55, 70, 77, 82, 98, 110, 154, 205, 245, 287, 385, 410, 451, 490, 539, 574, 770, 902, 911, 1078, 1435, 1822, 2009, 2255, 2695, 2870, 3157, 4018, 4510, 4555, 5390, 6314, 6377, 9110, 10021, 10045, 12754, 15785, 20042, 20090, 22099, 31570, 31885, 37351, 44198, 44639, 50105, 63770, 70147, 74702, 89278, 100210, 110495, 140294, 186755, 220990, 223195, 261457, 350735, 373510, 410861, 446390, 491029, 522914, 701470, 821722, 982058, 1307285, 1830199, 2054305, 2455145, 2614570, 2876027, 3660398, 4108610, 4910290, 5752054, 9150995, 14380135, 18301990, 20132189, 28760270, 40264378, 100660945, 201321890]

約数ペア:
[(1, 201321890), (2, 100660945), (5, 40264378), (7, 28760270), (10, 20132189), (11, 18301990), (14, 14380135), (22, 9150995), (35, 5752054), (41, 4910290), (49, 4108610), (55, 3660398), (70, 2876027), (77, 2614570), (82, 2455145), (98, 2054305), (110, 1830199), (154, 1307285), (205, 982058), (245, 821722), (287, 701470), (385, 522914), (410, 491029), (451, 446390), (490, 410861), (539, 373510), (574, 350735), (770, 261457), (902, 223195), (911, 220990), (1078, 186755), (1435, 140294), (1822, 110495), (2009, 100210), (2255, 89278), (2695, 74702), (2870, 70147), (3157, 63770), (4018, 50105), (4510, 44639), (4555, 44198), (5390, 37351), (6314, 31885), (6377, 31570), (9110, 22099), (10021, 20090), (10045, 20042), (12754, 15785)]

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