About the Number

201972720

201972719 ← → 201972721

2進数表記:1100000010011101101111110000

漢数字表記:二億百九十七万二千七百二十

素因数分解:

2 4 × 3 1 × 5 1 × 43 1 × 19571 1

素因数の和:19630
約数の個数: 80
約数和(自身を含む): 640708992
約数和(自身を除く): 438736272

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 3440, 5160, 10320, 19571, 39142, 58713, 78284, 97855, 117426, 156568, 195710, 234852, 293565, 313136, 391420, 469704, 587130, 782840, 841553, 939408, 1174260, 1565680, 1683106, 2348520, 2524659, 3366212, 4207765, 4697040, 5049318, 6732424, 8415530, 10098636, 12623295, 13464848, 16831060, 20197272, 25246590, 33662120, 40394544, 50493180, 67324240, 100986360, 201972720]

約数ペア:
[(1, 201972720), (2, 100986360), (3, 67324240), (4, 50493180), (5, 40394544), (6, 33662120), (8, 25246590), (10, 20197272), (12, 16831060), (15, 13464848), (16, 12623295), (20, 10098636), (24, 8415530), (30, 6732424), (40, 5049318), (43, 4697040), (48, 4207765), (60, 3366212), (80, 2524659), (86, 2348520), (120, 1683106), (129, 1565680), (172, 1174260), (215, 939408), (240, 841553), (258, 782840), (344, 587130), (430, 469704), (516, 391420), (645, 313136), (688, 293565), (860, 234852), (1032, 195710), (1290, 156568), (1720, 117426), (2064, 97855), (2580, 78284), (3440, 58713), (5160, 39142), (10320, 19571)]

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