About the Number

131668380

131668379 ← → 131668381

2進数表記:111110110010001100110011100

漢数字表記:一億三千百六十六万八千三百八十

素因数分解:

2 2 × 3 2 × 5 1 × 89 1 × 8219 1

素因数の和:8323
約数の個数: 72
約数和(自身を含む): 403930800
約数和(自身を除く): 272262420

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 5340, 8010, 8219, 16020, 16438, 24657, 32876, 41095, 49314, 73971, 82190, 98628, 123285, 147942, 164380, 246570, 295884, 369855, 493140, 731491, 739710, 1462982, 1479420, 2194473, 2925964, 3657455, 4388946, 6583419, 7314910, 8777892, 10972365, 13166838, 14629820, 21944730, 26333676, 32917095, 43889460, 65834190, 131668380]

約数ペア:
[(1, 131668380), (2, 65834190), (3, 43889460), (4, 32917095), (5, 26333676), (6, 21944730), (9, 14629820), (10, 13166838), (12, 10972365), (15, 8777892), (18, 7314910), (20, 6583419), (30, 4388946), (36, 3657455), (45, 2925964), (60, 2194473), (89, 1479420), (90, 1462982), (178, 739710), (180, 731491), (267, 493140), (356, 369855), (445, 295884), (534, 246570), (801, 164380), (890, 147942), (1068, 123285), (1335, 98628), (1602, 82190), (1780, 73971), (2670, 49314), (3204, 41095), (4005, 32876), (5340, 24657), (8010, 16438), (8219, 16020)]

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