About the Number

121415280

121415279 ← → 121415281

2進数表記:111001111001010011001110000

漢数字表記:一億二千百四十一万五千二百八十

素因数分解:

2 4 × 3 1 × 5 1 × 7 1 × 72271 1

素因数の和:72294
約数の個数: 80
約数和(自身を含む): 430162944
約数和(自身を除く): 308747664

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 72271, 144542, 216813, 289084, 361355, 433626, 505897, 578168, 722710, 867252, 1011794, 1084065, 1156336, 1445420, 1517691, 1734504, 2023588, 2168130, 2529485, 2890840, 3035382, 3469008, 4047176, 4336260, 5058970, 5781680, 6070764, 7588455, 8094352, 8672520, 10117940, 12141528, 15176910, 17345040, 20235880, 24283056, 30353820, 40471760, 60707640, 121415280]

約数ペア:
[(1, 121415280), (2, 60707640), (3, 40471760), (4, 30353820), (5, 24283056), (6, 20235880), (7, 17345040), (8, 15176910), (10, 12141528), (12, 10117940), (14, 8672520), (15, 8094352), (16, 7588455), (20, 6070764), (21, 5781680), (24, 5058970), (28, 4336260), (30, 4047176), (35, 3469008), (40, 3035382), (42, 2890840), (48, 2529485), (56, 2168130), (60, 2023588), (70, 1734504), (80, 1517691), (84, 1445420), (105, 1156336), (112, 1084065), (120, 1011794), (140, 867252), (168, 722710), (210, 578168), (240, 505897), (280, 433626), (336, 361355), (420, 289084), (560, 216813), (840, 144542), (1680, 72271)]

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