About the Number

487866990

487866989 ← → 487866991

2進数表記:11101000101000100001001101110

漢数字表記:四億八千七百八十六万六千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 13 1 × 19 1 × 65839 1

素因数の和:65881
約数の個数: 64
約数和(自身を含む): 1327334400
約数和(自身を除く): 839467410

約数列:
[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 3705, 7410, 65839, 131678, 197517, 329195, 395034, 658390, 855907, 987585, 1250941, 1711814, 1975170, 2501882, 2567721, 3752823, 4279535, 5135442, 6254705, 7505646, 8559070, 12509410, 12838605, 16262233, 18764115, 25677210, 32524466, 37528230, 48786699, 81311165, 97573398, 162622330, 243933495, 487866990]

約数ペア:
[(1, 487866990), (2, 243933495), (3, 162622330), (5, 97573398), (6, 81311165), (10, 48786699), (13, 37528230), (15, 32524466), (19, 25677210), (26, 18764115), (30, 16262233), (38, 12838605), (39, 12509410), (57, 8559070), (65, 7505646), (78, 6254705), (95, 5135442), (114, 4279535), (130, 3752823), (190, 2567721), (195, 2501882), (247, 1975170), (285, 1711814), (390, 1250941), (494, 987585), (570, 855907), (741, 658390), (1235, 395034), (1482, 329195), (2470, 197517), (3705, 131678), (7410, 65839)]

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