489749320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{1607}}^1$

素因数の和:2038

約数の個数: 64

約数和(自身を含む): 1163548800

約数和(自身を除く): 673799480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 401, 760, 802, 1604, 1607, 2005, 3208, 3214, 4010, 6428, 7619, 8020, 8035, 12856, 15238, 16040, 16070, 30476, 30533, 32140, 38095, 60952, 61066, 64280, 76190, 122132, 152380, 152665, 244264, 304760, 305330, 610660, 644407, 1221320, 1288814, 2577628, 3222035, 5155256, 6444070, 12243733, 12888140, 24487466, 25776280, 48974932, 61218665, 97949864, 122437330, 244874660, 489749320]

約数ペア:

[(1, 489749320), (2, 244874660), (4, 122437330), (5, 97949864), (8, 61218665), (10, 48974932), (19, 25776280), (20, 24487466), (38, 12888140), (40, 12243733), (76, 6444070), (95, 5155256), (152, 3222035), (190, 2577628), (380, 1288814), (401, 1221320), (760, 644407), (802, 610660), (1604, 305330), (1607, 304760), (2005, 244264), (3208, 152665), (3214, 152380), (4010, 122132), (6428, 76190), (7619, 64280), (8020, 61066), (8035, 60952), (12856, 38095), (15238, 32140), (16040, 30533), (16070, 30476)]