About the Number

31996020

31996019 ← → 31996021

2進数表記:1111010000011100001110100

漢数字表記:三千百九十九万六千二十

素因数分解:

2 2 × 3 1 × 5 1 × 7 2 × 10883 1

素因数の和:10909
約数の個数: 72
約数和(自身を含む): 104225184
約数和(自身を除く): 72229164

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 10883, 21766, 32649, 43532, 54415, 65298, 76181, 108830, 130596, 152362, 163245, 217660, 228543, 304724, 326490, 380905, 457086, 533267, 652980, 761810, 914172, 1066534, 1142715, 1523620, 1599801, 2133068, 2285430, 2666335, 3199602, 4570860, 5332670, 6399204, 7999005, 10665340, 15998010, 31996020]

約数ペア:
[(1, 31996020), (2, 15998010), (3, 10665340), (4, 7999005), (5, 6399204), (6, 5332670), (7, 4570860), (10, 3199602), (12, 2666335), (14, 2285430), (15, 2133068), (20, 1599801), (21, 1523620), (28, 1142715), (30, 1066534), (35, 914172), (42, 761810), (49, 652980), (60, 533267), (70, 457086), (84, 380905), (98, 326490), (105, 304724), (140, 228543), (147, 217660), (196, 163245), (210, 152362), (245, 130596), (294, 108830), (420, 76181), (490, 65298), (588, 54415), (735, 43532), (980, 32649), (1470, 21766), (2940, 10883)]

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