About the Number

131424720

131424719 ← → 131424721

2進数表記:111110101010110000111010000

漢数字表記:一億三千百四十二万四千七百二十

素因数分解:

2 4 × 3 1 × 5 1 × 7 1 × 78229 1

素因数の和:78252
約数の個数: 80
約数和(自身を含む): 465624960
約数和(自身を除く): 334200240

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 78229, 156458, 234687, 312916, 391145, 469374, 547603, 625832, 782290, 938748, 1095206, 1173435, 1251664, 1564580, 1642809, 1877496, 2190412, 2346870, 2738015, 3129160, 3285618, 3754992, 4380824, 4693740, 5476030, 6258320, 6571236, 8214045, 8761648, 9387480, 10952060, 13142472, 16428090, 18774960, 21904120, 26284944, 32856180, 43808240, 65712360, 131424720]

約数ペア:
[(1, 131424720), (2, 65712360), (3, 43808240), (4, 32856180), (5, 26284944), (6, 21904120), (7, 18774960), (8, 16428090), (10, 13142472), (12, 10952060), (14, 9387480), (15, 8761648), (16, 8214045), (20, 6571236), (21, 6258320), (24, 5476030), (28, 4693740), (30, 4380824), (35, 3754992), (40, 3285618), (42, 3129160), (48, 2738015), (56, 2346870), (60, 2190412), (70, 1877496), (80, 1642809), (84, 1564580), (105, 1251664), (112, 1173435), (120, 1095206), (140, 938748), (168, 782290), (210, 625832), (240, 547603), (280, 469374), (336, 391145), (420, 312916), (560, 234687), (840, 156458), (1680, 78229)]

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