About the Number

29388780

29388779 ← → 29388781

2進数表記:1110000000110111111101100

漢数字表記:二千九百三十八万八千七百八十

素因数分解:

2 2 × 3 2 × 5 1 × 43 1 × 3797 1

素因数の和:3855
約数の個数: 72
約数和(自身を含む): 91243152
約数和(自身を除く): 61854372

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3797, 3870, 7594, 7740, 11391, 15188, 18985, 22782, 34173, 37970, 45564, 56955, 68346, 75940, 113910, 136692, 163271, 170865, 227820, 326542, 341730, 489813, 653084, 683460, 816355, 979626, 1469439, 1632710, 1959252, 2449065, 2938878, 3265420, 4898130, 5877756, 7347195, 9796260, 14694390, 29388780]

約数ペア:
[(1, 29388780), (2, 14694390), (3, 9796260), (4, 7347195), (5, 5877756), (6, 4898130), (9, 3265420), (10, 2938878), (12, 2449065), (15, 1959252), (18, 1632710), (20, 1469439), (30, 979626), (36, 816355), (43, 683460), (45, 653084), (60, 489813), (86, 341730), (90, 326542), (129, 227820), (172, 170865), (180, 163271), (215, 136692), (258, 113910), (387, 75940), (430, 68346), (516, 56955), (645, 45564), (774, 37970), (860, 34173), (1290, 22782), (1548, 18985), (1935, 15188), (2580, 11391), (3797, 7740), (3870, 7594)]

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