About the Number

81200490

81200489 ← → 81200491

2進数表記:100110101110000010101101010

漢数字表記:八千百二十万四百九十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 19 1 × 47 1 × 433 1

素因数の和:516
約数の個数: 128
約数和(自身を含む): 239984640
約数和(自身を除く): 158784150

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 47, 57, 70, 94, 95, 105, 114, 133, 141, 190, 210, 235, 266, 282, 285, 329, 399, 433, 470, 570, 658, 665, 705, 798, 866, 893, 987, 1299, 1330, 1410, 1645, 1786, 1974, 1995, 2165, 2598, 2679, 3031, 3290, 3990, 4330, 4465, 4935, 5358, 6062, 6251, 6495, 8227, 8930, 9093, 9870, 12502, 12990, 13395, 15155, 16454, 18186, 18753, 20351, 24681, 26790, 30310, 31255, 37506, 40702, 41135, 45465, 49362, 57589, 61053, 62510, 82270, 90930, 93765, 101755, 115178, 122106, 123405, 142457, 172767, 187530, 203510, 246810, 284914, 287945, 305265, 345534, 386669, 427371, 575890, 610530, 712285, 773338, 854742, 863835, 1160007, 1424570, 1727670, 1933345, 2136855, 2320014, 2706683, 3866690, 4273710, 5413366, 5800035, 8120049, 11600070, 13533415, 16240098, 27066830, 40600245, 81200490]

約数ペア:
[(1, 81200490), (2, 40600245), (3, 27066830), (5, 16240098), (6, 13533415), (7, 11600070), (10, 8120049), (14, 5800035), (15, 5413366), (19, 4273710), (21, 3866690), (30, 2706683), (35, 2320014), (38, 2136855), (42, 1933345), (47, 1727670), (57, 1424570), (70, 1160007), (94, 863835), (95, 854742), (105, 773338), (114, 712285), (133, 610530), (141, 575890), (190, 427371), (210, 386669), (235, 345534), (266, 305265), (282, 287945), (285, 284914), (329, 246810), (399, 203510), (433, 187530), (470, 172767), (570, 142457), (658, 123405), (665, 122106), (705, 115178), (798, 101755), (866, 93765), (893, 90930), (987, 82270), (1299, 62510), (1330, 61053), (1410, 57589), (1645, 49362), (1786, 45465), (1974, 41135), (1995, 40702), (2165, 37506), (2598, 31255), (2679, 30310), (3031, 26790), (3290, 24681), (3990, 20351), (4330, 18753), (4465, 18186), (4935, 16454), (5358, 15155), (6062, 13395), (6251, 12990), (6495, 12502), (8227, 9870), (8930, 9093)]

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