About the Number

2531280

2531279 ← → 2531281

2進数表記:1001101001111111010000

漢数字表記:二百五十三万千二百八十

素因数分解:

2 4 × 3 1 × 5 1 × 53 1 × 199 1

素因数の和:268
約数の個数: 80
約数和(自身を含む): 8035200
約数和(自身を除く): 5503920

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 199, 212, 240, 265, 318, 398, 424, 530, 597, 636, 795, 796, 848, 995, 1060, 1194, 1272, 1590, 1592, 1990, 2120, 2388, 2544, 2985, 3180, 3184, 3980, 4240, 4776, 5970, 6360, 7960, 9552, 10547, 11940, 12720, 15920, 21094, 23880, 31641, 42188, 47760, 52735, 63282, 84376, 105470, 126564, 158205, 168752, 210940, 253128, 316410, 421880, 506256, 632820, 843760, 1265640, 2531280]

約数ペア:
[(1, 2531280), (2, 1265640), (3, 843760), (4, 632820), (5, 506256), (6, 421880), (8, 316410), (10, 253128), (12, 210940), (15, 168752), (16, 158205), (20, 126564), (24, 105470), (30, 84376), (40, 63282), (48, 52735), (53, 47760), (60, 42188), (80, 31641), (106, 23880), (120, 21094), (159, 15920), (199, 12720), (212, 11940), (240, 10547), (265, 9552), (318, 7960), (398, 6360), (424, 5970), (530, 4776), (597, 4240), (636, 3980), (795, 3184), (796, 3180), (848, 2985), (995, 2544), (1060, 2388), (1194, 2120), (1272, 1990), (1590, 1592)]

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