About the Number

128501040

128501039 ← → 128501041

2進数表記:111101010001100010100110000

漢数字表記:一億二千八百五十万千四十

素因数分解:

2 4 × 3 1 × 5 1 × 347 1 × 1543 1

素因数の和:1906
約数の個数: 80
約数和(自身を含む): 399760128
約数和(自身を除く): 271259088

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 347, 694, 1041, 1388, 1543, 1735, 2082, 2776, 3086, 3470, 4164, 4629, 5205, 5552, 6172, 6940, 7715, 8328, 9258, 10410, 12344, 13880, 15430, 16656, 18516, 20820, 23145, 24688, 27760, 30860, 37032, 41640, 46290, 61720, 74064, 83280, 92580, 123440, 185160, 370320, 535421, 1070842, 1606263, 2141684, 2677105, 3212526, 4283368, 5354210, 6425052, 8031315, 8566736, 10708420, 12850104, 16062630, 21416840, 25700208, 32125260, 42833680, 64250520, 128501040]

約数ペア:
[(1, 128501040), (2, 64250520), (3, 42833680), (4, 32125260), (5, 25700208), (6, 21416840), (8, 16062630), (10, 12850104), (12, 10708420), (15, 8566736), (16, 8031315), (20, 6425052), (24, 5354210), (30, 4283368), (40, 3212526), (48, 2677105), (60, 2141684), (80, 1606263), (120, 1070842), (240, 535421), (347, 370320), (694, 185160), (1041, 123440), (1388, 92580), (1543, 83280), (1735, 74064), (2082, 61720), (2776, 46290), (3086, 41640), (3470, 37032), (4164, 30860), (4629, 27760), (5205, 24688), (5552, 23145), (6172, 20820), (6940, 18516), (7715, 16656), (8328, 15430), (9258, 13880), (10410, 12344)]

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