About the Number

131872140

131872139 ← → 131872141

2進数表記:111110111000011010110001100

漢数字表記:一億三千百八十七万二千百四十

素因数分解:

2 2 × 3 2 × 5 1 × 31 1 × 23633 1

素因数の和:23679
約数の個数: 72
約数和(自身を含む): 412933248
約数和(自身を除く): 281061108

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 23633, 47266, 70899, 94532, 118165, 141798, 212697, 236330, 283596, 354495, 425394, 472660, 708990, 732623, 850788, 1063485, 1417980, 1465246, 2126970, 2197869, 2930492, 3663115, 4253940, 4395738, 6593607, 7326230, 8791476, 10989345, 13187214, 14652460, 21978690, 26374428, 32968035, 43957380, 65936070, 131872140]

約数ペア:
[(1, 131872140), (2, 65936070), (3, 43957380), (4, 32968035), (5, 26374428), (6, 21978690), (9, 14652460), (10, 13187214), (12, 10989345), (15, 8791476), (18, 7326230), (20, 6593607), (30, 4395738), (31, 4253940), (36, 3663115), (45, 2930492), (60, 2197869), (62, 2126970), (90, 1465246), (93, 1417980), (124, 1063485), (155, 850788), (180, 732623), (186, 708990), (279, 472660), (310, 425394), (372, 354495), (465, 283596), (558, 236330), (620, 212697), (930, 141798), (1116, 118165), (1395, 94532), (1860, 70899), (2790, 47266), (5580, 23633)]

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