About the Number

87129920

87129919 ← → 87129921

2進数表記:101001100010111111101000000

漢数字表記:八千七百十二万九千九百二十

素因数分解:

2 6 × 5 1 × 29 1 × 41 1 × 229 1

素因数の和:316
約数の個数: 112
約数和(自身を含む): 220827600
約数和(自身を除く): 133697680

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 41, 58, 64, 80, 82, 116, 145, 160, 164, 205, 229, 232, 290, 320, 328, 410, 458, 464, 580, 656, 820, 916, 928, 1145, 1160, 1189, 1312, 1640, 1832, 1856, 2290, 2320, 2378, 2624, 3280, 3664, 4580, 4640, 4756, 5945, 6560, 6641, 7328, 9160, 9280, 9389, 9512, 11890, 13120, 13282, 14656, 18320, 18778, 19024, 23780, 26564, 33205, 36640, 37556, 38048, 46945, 47560, 53128, 66410, 73280, 75112, 76096, 93890, 95120, 106256, 132820, 150224, 187780, 190240, 212512, 265640, 272281, 300448, 375560, 380480, 425024, 531280, 544562, 600896, 751120, 1062560, 1089124, 1361405, 1502240, 2125120, 2178248, 2722810, 3004480, 4356496, 5445620, 8712992, 10891240, 17425984, 21782480, 43564960, 87129920]

約数ペア:
[(1, 87129920), (2, 43564960), (4, 21782480), (5, 17425984), (8, 10891240), (10, 8712992), (16, 5445620), (20, 4356496), (29, 3004480), (32, 2722810), (40, 2178248), (41, 2125120), (58, 1502240), (64, 1361405), (80, 1089124), (82, 1062560), (116, 751120), (145, 600896), (160, 544562), (164, 531280), (205, 425024), (229, 380480), (232, 375560), (290, 300448), (320, 272281), (328, 265640), (410, 212512), (458, 190240), (464, 187780), (580, 150224), (656, 132820), (820, 106256), (916, 95120), (928, 93890), (1145, 76096), (1160, 75112), (1189, 73280), (1312, 66410), (1640, 53128), (1832, 47560), (1856, 46945), (2290, 38048), (2320, 37556), (2378, 36640), (2624, 33205), (3280, 26564), (3664, 23780), (4580, 19024), (4640, 18778), (4756, 18320), (5945, 14656), (6560, 13282), (6641, 13120), (7328, 11890), (9160, 9512), (9280, 9389)]

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