161528360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1483}}^1$

素因数の和:1890

約数の個数: 64

約数和(自身を含む): 416707200

約数和(自身を除く): 255178840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 389, 778, 1483, 1556, 1945, 2723, 2966, 3112, 3890, 5446, 5932, 7415, 7780, 10381, 10892, 11864, 13615, 14830, 15560, 20762, 21784, 27230, 29660, 41524, 51905, 54460, 59320, 83048, 103810, 108920, 207620, 415240, 576887, 1153774, 2307548, 2884435, 4038209, 4615096, 5768870, 8076418, 11537740, 16152836, 20191045, 23075480, 32305672, 40382090, 80764180, 161528360]

約数ペア:

[(1, 161528360), (2, 80764180), (4, 40382090), (5, 32305672), (7, 23075480), (8, 20191045), (10, 16152836), (14, 11537740), (20, 8076418), (28, 5768870), (35, 4615096), (40, 4038209), (56, 2884435), (70, 2307548), (140, 1153774), (280, 576887), (389, 415240), (778, 207620), (1483, 108920), (1556, 103810), (1945, 83048), (2723, 59320), (2966, 54460), (3112, 51905), (3890, 41524), (5446, 29660), (5932, 27230), (7415, 21784), (7780, 20762), (10381, 15560), (10892, 14830), (11864, 13615)]