About the Number

1283998989

1283998988 ← → 1283998990

2進数表記:1001100100010000100010100001101

漢数字表記:十二億八千三百九十九万八千九百八十九

素因数分解:

3 1 × 7 2 × 13 1 × 23 1 × 131 1 × 223 1

素因数の和:407
約数の個数: 96
約数和(自身を含む): 2265145344
約数和(自身を除く): 981146355

約数列:
[1, 3, 7, 13, 21, 23, 39, 49, 69, 91, 131, 147, 161, 223, 273, 299, 393, 483, 637, 669, 897, 917, 1127, 1561, 1703, 1911, 2093, 2751, 2899, 3013, 3381, 4683, 5109, 5129, 6279, 6419, 8697, 9039, 10927, 11921, 14651, 15387, 19257, 20293, 21091, 29213, 32781, 35763, 35903, 39169, 43953, 60879, 63273, 66677, 83447, 87639, 107709, 117507, 142051, 147637, 200031, 204491, 250341, 251321, 274183, 379769, 426153, 442911, 466739, 613473, 671899, 753963, 822549, 1139307, 1400217, 1431437, 1919281, 2015697, 2658383, 3267173, 4294311, 4703293, 5757843, 7975149, 8734687, 9801519, 14109879, 18608681, 26204061, 32923051, 55826043, 61142809, 98769153, 183428427, 427999663, 1283998989]

約数ペア:
[(1, 1283998989), (3, 427999663), (7, 183428427), (13, 98769153), (21, 61142809), (23, 55826043), (39, 32923051), (49, 26204061), (69, 18608681), (91, 14109879), (131, 9801519), (147, 8734687), (161, 7975149), (223, 5757843), (273, 4703293), (299, 4294311), (393, 3267173), (483, 2658383), (637, 2015697), (669, 1919281), (897, 1431437), (917, 1400217), (1127, 1139307), (1561, 822549), (1703, 753963), (1911, 671899), (2093, 613473), (2751, 466739), (2899, 442911), (3013, 426153), (3381, 379769), (4683, 274183), (5109, 251321), (5129, 250341), (6279, 204491), (6419, 200031), (8697, 147637), (9039, 142051), (10927, 117507), (11921, 107709), (14651, 87639), (15387, 83447), (19257, 66677), (20293, 63273), (21091, 60879), (29213, 43953), (32781, 39169), (35763, 35903)]

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