About the Number

142728720

142728719 ← → 142728721

2進数表記:1000100000011101111000010000

漢数字表記:一億四千二百七十二万八千七百二十

素因数分解:

2 4 × 3 1 × 5 1 × 29 1 × 20507 1

素因数の和:20552
約数の個数: 80
約数和(自身を含む): 457738560
約数和(自身を除く): 315009840

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 3480, 6960, 20507, 41014, 61521, 82028, 102535, 123042, 164056, 205070, 246084, 307605, 328112, 410140, 492168, 594703, 615210, 820280, 984336, 1189406, 1230420, 1640560, 1784109, 2378812, 2460840, 2973515, 3568218, 4757624, 4921680, 5947030, 7136436, 8920545, 9515248, 11894060, 14272872, 17841090, 23788120, 28545744, 35682180, 47576240, 71364360, 142728720]

約数ペア:
[(1, 142728720), (2, 71364360), (3, 47576240), (4, 35682180), (5, 28545744), (6, 23788120), (8, 17841090), (10, 14272872), (12, 11894060), (15, 9515248), (16, 8920545), (20, 7136436), (24, 5947030), (29, 4921680), (30, 4757624), (40, 3568218), (48, 2973515), (58, 2460840), (60, 2378812), (80, 1784109), (87, 1640560), (116, 1230420), (120, 1189406), (145, 984336), (174, 820280), (232, 615210), (240, 594703), (290, 492168), (348, 410140), (435, 328112), (464, 307605), (580, 246084), (696, 205070), (870, 164056), (1160, 123042), (1392, 102535), (1740, 82028), (2320, 61521), (3480, 41014), (6960, 20507)]

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