About the Number

8004990

8004989 ← → 8004991

2進数表記:11110100010010101111110

漢数字表記:八百万四千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 38119 1

素因数の和:38136
約数の個数: 32
約数和(自身を含む): 21957120
約数和(自身を除く): 13952130

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 38119, 76238, 114357, 190595, 228714, 266833, 381190, 533666, 571785, 800499, 1143570, 1334165, 1600998, 2668330, 4002495, 8004990]

約数ペア:
[(1, 8004990), (2, 4002495), (3, 2668330), (5, 1600998), (6, 1334165), (7, 1143570), (10, 800499), (14, 571785), (15, 533666), (21, 381190), (30, 266833), (35, 228714), (42, 190595), (70, 114357), (105, 76238), (210, 38119)]

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