20163824140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{643}}^1\times {\mathrm{1367}}^1$

素因数の和:2087

約数の個数: 96

約数和(自身を含む): 44994023424

約数和(自身を除く): 24830199284

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 643, 740, 1147, 1286, 1367, 2294, 2572, 2734, 3215, 4588, 5468, 5735, 6430, 6835, 11470, 12860, 13670, 19933, 22940, 23791, 27340, 39866, 42377, 47582, 50579, 79732, 84754, 95164, 99665, 101158, 118955, 169508, 199330, 202316, 211885, 237910, 252895, 398660, 423770, 475820, 505790, 737521, 847540, 878981, 1011580, 1475042, 1567949, 1757962, 2950084, 3135898, 3515924, 3687605, 4394905, 6271796, 7375210, 7839745, 8789810, 14750420, 15679490, 17579620, 27248411, 31358980, 32522297, 54496822, 65044594, 108993644, 130089188, 136242055, 162611485, 272484110, 325222970, 544968220, 650445940, 1008191207, 2016382414, 4032764828, 5040956035, 10081912070, 20163824140]

約数ペア:

[(1, 20163824140), (2, 10081912070), (4, 5040956035), (5, 4032764828), (10, 2016382414), (20, 1008191207), (31, 650445940), (37, 544968220), (62, 325222970), (74, 272484110), (124, 162611485), (148, 136242055), (155, 130089188), (185, 108993644), (310, 65044594), (370, 54496822), (620, 32522297), (643, 31358980), (740, 27248411), (1147, 17579620), (1286, 15679490), (1367, 14750420), (2294, 8789810), (2572, 7839745), (2734, 7375210), (3215, 6271796), (4588, 4394905), (5468, 3687605), (5735, 3515924), (6430, 3135898), (6835, 2950084), (11470, 1757962), (12860, 1567949), (13670, 1475042), (19933, 1011580), (22940, 878981), (23791, 847540), (27340, 737521), (39866, 505790), (42377, 475820), (47582, 423770), (50579, 398660), (79732, 252895), (84754, 237910), (95164, 211885), (99665, 202316), (101158, 199330), (118955, 169508)]