About the Number

8002980

8002979 ← → 8002981

2進数表記:11110100001110110100100

漢数字表記:八百万二千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 173 1 × 257 1

素因数の和:445
約数の個数: 72
約数和(自身を含む): 24511032
約数和(自身を除く): 16508052

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 257, 346, 514, 519, 692, 771, 865, 1028, 1038, 1285, 1542, 1557, 1730, 2076, 2313, 2570, 2595, 3084, 3114, 3460, 3855, 4626, 5140, 5190, 6228, 7710, 7785, 9252, 10380, 11565, 15420, 15570, 23130, 31140, 44461, 46260, 88922, 133383, 177844, 222305, 266766, 400149, 444610, 533532, 666915, 800298, 889220, 1333830, 1600596, 2000745, 2667660, 4001490, 8002980]

約数ペア:
[(1, 8002980), (2, 4001490), (3, 2667660), (4, 2000745), (5, 1600596), (6, 1333830), (9, 889220), (10, 800298), (12, 666915), (15, 533532), (18, 444610), (20, 400149), (30, 266766), (36, 222305), (45, 177844), (60, 133383), (90, 88922), (173, 46260), (180, 44461), (257, 31140), (346, 23130), (514, 15570), (519, 15420), (692, 11565), (771, 10380), (865, 9252), (1028, 7785), (1038, 7710), (1285, 6228), (1542, 5190), (1557, 5140), (1730, 4626), (2076, 3855), (2313, 3460), (2570, 3114), (2595, 3084)]

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