319152880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 120

約数和(自身を含む): 804470832

約数和(自身を除く): 485317952

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 257, 304, 344, 361, 380, 430, 514, 688, 722, 760, 817, 860, 1028, 1285, 1444, 1520, 1634, 1720, 1805, 2056, 2570, 2888, 3268, 3440, 3610, 4085, 4112, 4883, 5140, 5776, 6536, 7220, 8170, 9766, 10280, 11051, 13072, 14440, 15523, 16340, 19532, 20560, 22102, 24415, 28880, 31046, 32680, 39064, 44204, 48830, 55255, 62092, 65360, 77615, 78128, 88408, 92777, 97660, 110510, 124184, 155230, 176816, 185554, 195320, 209969, 221020, 248368, 310460, 371108, 390640, 419938, 442040, 463885, 620920, 742216, 839876, 884080, 927770, 1049845, 1241840, 1484432, 1679752, 1855540, 2099690, 3359504, 3711080, 3989411, 4199380, 7422160, 7978822, 8398760, 15957644, 16797520, 19947055, 31915288, 39894110, 63830576, 79788220, 159576440, 319152880]

約数ペア:

[(1, 319152880), (2, 159576440), (4, 79788220), (5, 63830576), (8, 39894110), (10, 31915288), (16, 19947055), (19, 16797520), (20, 15957644), (38, 8398760), (40, 7978822), (43, 7422160), (76, 4199380), (80, 3989411), (86, 3711080), (95, 3359504), (152, 2099690), (172, 1855540), (190, 1679752), (215, 1484432), (257, 1241840), (304, 1049845), (344, 927770), (361, 884080), (380, 839876), (430, 742216), (514, 620920), (688, 463885), (722, 442040), (760, 419938), (817, 390640), (860, 371108), (1028, 310460), (1285, 248368), (1444, 221020), (1520, 209969), (1634, 195320), (1720, 185554), (1805, 176816), (2056, 155230), (2570, 124184), (2888, 110510), (3268, 97660), (3440, 92777), (3610, 88408), (4085, 78128), (4112, 77615), (4883, 65360), (5140, 62092), (5776, 55255), (6536, 48830), (7220, 44204), (8170, 39064), (9766, 32680), (10280, 31046), (11051, 28880), (13072, 24415), (14440, 22102), (15523, 20560), (16340, 19532)]