About the Number

1300957780

1300957779 ← → 1300957781

2進数表記:1001101100010110000101001010100

漢数字表記:十三億九十五万七千七百八十

素因数分解:

2 2 × 5 1 × 31 1 × 79 1 × 26561 1

素因数の和:26680
約数の個数: 48
約数和(自身を含む): 2855946240
約数和(自身を除く): 1554988460

約数列:
[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 2449, 4898, 9796, 12245, 24490, 26561, 48980, 53122, 106244, 132805, 265610, 531220, 823391, 1646782, 2098319, 3293564, 4116955, 4196638, 8233910, 8393276, 10491595, 16467820, 20983190, 41966380, 65047889, 130095778, 260191556, 325239445, 650478890, 1300957780]

約数ペア:
[(1, 1300957780), (2, 650478890), (4, 325239445), (5, 260191556), (10, 130095778), (20, 65047889), (31, 41966380), (62, 20983190), (79, 16467820), (124, 10491595), (155, 8393276), (158, 8233910), (310, 4196638), (316, 4116955), (395, 3293564), (620, 2098319), (790, 1646782), (1580, 823391), (2449, 531220), (4898, 265610), (9796, 132805), (12245, 106244), (24490, 53122), (26561, 48980)]

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