About the Number

81316830

81316829 ← → 81316831

2進数表記:100110110001100101111011110

漢数字表記:八千百三十一万六千八百三十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 127 1 × 3049 1

素因数の和:3193
約数の個数: 64
約数和(自身を含む): 224870400
約数和(自身を除く): 143553570

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 127, 210, 254, 381, 635, 762, 889, 1270, 1778, 1905, 2667, 3049, 3810, 4445, 5334, 6098, 8890, 9147, 13335, 15245, 18294, 21343, 26670, 30490, 42686, 45735, 64029, 91470, 106715, 128058, 213430, 320145, 387223, 640290, 774446, 1161669, 1936115, 2323338, 2710561, 3872230, 5421122, 5808345, 8131683, 11616690, 13552805, 16263366, 27105610, 40658415, 81316830]

約数ペア:
[(1, 81316830), (2, 40658415), (3, 27105610), (5, 16263366), (6, 13552805), (7, 11616690), (10, 8131683), (14, 5808345), (15, 5421122), (21, 3872230), (30, 2710561), (35, 2323338), (42, 1936115), (70, 1161669), (105, 774446), (127, 640290), (210, 387223), (254, 320145), (381, 213430), (635, 128058), (762, 106715), (889, 91470), (1270, 64029), (1778, 45735), (1905, 42686), (2667, 30490), (3049, 26670), (3810, 21343), (4445, 18294), (5334, 15245), (6098, 13335), (8890, 9147)]

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