About the Number

6421620

6421619 ← → 6421621

2進数表記:11000011111110001110100

漢数字表記:六百四十二万千六百二十

素因数分解:

2 2 × 3 1 × 5 1 × 19 1 × 43 1 × 131 1

素因数の和:205
約数の個数: 96
約数和(自身を含む): 19514880
約数和(自身を除く): 13093260

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 131, 172, 190, 215, 228, 258, 262, 285, 380, 393, 430, 516, 524, 570, 645, 655, 786, 817, 860, 1140, 1290, 1310, 1572, 1634, 1965, 2451, 2489, 2580, 2620, 3268, 3930, 4085, 4902, 4978, 5633, 7467, 7860, 8170, 9804, 9956, 11266, 12255, 12445, 14934, 16340, 16899, 22532, 24510, 24890, 28165, 29868, 33798, 37335, 49020, 49780, 56330, 67596, 74670, 84495, 107027, 112660, 149340, 168990, 214054, 321081, 337980, 428108, 535135, 642162, 1070270, 1284324, 1605405, 2140540, 3210810, 6421620]

約数ペア:
[(1, 6421620), (2, 3210810), (3, 2140540), (4, 1605405), (5, 1284324), (6, 1070270), (10, 642162), (12, 535135), (15, 428108), (19, 337980), (20, 321081), (30, 214054), (38, 168990), (43, 149340), (57, 112660), (60, 107027), (76, 84495), (86, 74670), (95, 67596), (114, 56330), (129, 49780), (131, 49020), (172, 37335), (190, 33798), (215, 29868), (228, 28165), (258, 24890), (262, 24510), (285, 22532), (380, 16899), (393, 16340), (430, 14934), (516, 12445), (524, 12255), (570, 11266), (645, 9956), (655, 9804), (786, 8170), (817, 7860), (860, 7467), (1140, 5633), (1290, 4978), (1310, 4902), (1572, 4085), (1634, 3930), (1965, 3268), (2451, 2620), (2489, 2580)]

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