About the Number

385020

385019 ← → 385021

2進数表記:1011101111111111100

漢数字表記:三十八万五千二十

素因数分解:

2 2 × 3 3 × 5 1 × 23 1 × 31 1

素因数の和:72
約数の個数: 96
約数和(自身を含む): 1290240
約数和(自身を除く): 905220

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 31, 36, 45, 46, 54, 60, 62, 69, 90, 92, 93, 108, 115, 124, 135, 138, 155, 180, 186, 207, 230, 270, 276, 279, 310, 345, 372, 414, 460, 465, 540, 558, 620, 621, 690, 713, 828, 837, 930, 1035, 1116, 1242, 1380, 1395, 1426, 1674, 1860, 2070, 2139, 2484, 2790, 2852, 3105, 3348, 3565, 4140, 4185, 4278, 5580, 6210, 6417, 7130, 8370, 8556, 10695, 12420, 12834, 14260, 16740, 19251, 21390, 25668, 32085, 38502, 42780, 64170, 77004, 96255, 128340, 192510, 385020]

約数ペア:
[(1, 385020), (2, 192510), (3, 128340), (4, 96255), (5, 77004), (6, 64170), (9, 42780), (10, 38502), (12, 32085), (15, 25668), (18, 21390), (20, 19251), (23, 16740), (27, 14260), (30, 12834), (31, 12420), (36, 10695), (45, 8556), (46, 8370), (54, 7130), (60, 6417), (62, 6210), (69, 5580), (90, 4278), (92, 4185), (93, 4140), (108, 3565), (115, 3348), (124, 3105), (135, 2852), (138, 2790), (155, 2484), (180, 2139), (186, 2070), (207, 1860), (230, 1674), (270, 1426), (276, 1395), (279, 1380), (310, 1242), (345, 1116), (372, 1035), (414, 930), (460, 837), (465, 828), (540, 713), (558, 690), (620, 621)]

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