About the Number

2801308978

2801308977 ← → 2801308979

2進数表記:10100110111110001001010100110010

漢数字表記:二十八億百三十万八千九百七十八

素因数分解:

2 1 × 13 1 × 61 1 × 97 1 × 131 1 × 139 1

素因数の和:443
約数の個数: 64
約数和(自身を含む): 4715948160
約数和(自身を除く): 1914639182

約数列:
[1, 2, 13, 26, 61, 97, 122, 131, 139, 194, 262, 278, 793, 1261, 1586, 1703, 1807, 2522, 3406, 3614, 5917, 7991, 8479, 11834, 12707, 13483, 15982, 16958, 18209, 25414, 26966, 36418, 76921, 103883, 110227, 153842, 165191, 175279, 207766, 220454, 236717, 330382, 350558, 473434, 775127, 822463, 1110749, 1550254, 1644926, 1766273, 2221498, 3532546, 10076651, 10692019, 14439737, 20153302, 21384038, 22961549, 28879474, 45923098, 107742653, 215485306, 1400654489, 2801308978]

約数ペア:
[(1, 2801308978), (2, 1400654489), (13, 215485306), (26, 107742653), (61, 45923098), (97, 28879474), (122, 22961549), (131, 21384038), (139, 20153302), (194, 14439737), (262, 10692019), (278, 10076651), (793, 3532546), (1261, 2221498), (1586, 1766273), (1703, 1644926), (1807, 1550254), (2522, 1110749), (3406, 822463), (3614, 775127), (5917, 473434), (7991, 350558), (8479, 330382), (11834, 236717), (12707, 220454), (13483, 207766), (15982, 175279), (16958, 165191), (18209, 153842), (25414, 110227), (26966, 103883), (36418, 76921)]

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