25891215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 50429952

約数和(自身を除く): 24538737

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 71, 105, 115, 151, 161, 213, 345, 355, 453, 483, 497, 755, 805, 1057, 1065, 1491, 1633, 2265, 2415, 2485, 3171, 3473, 4899, 5285, 7455, 8165, 10419, 10721, 11431, 15855, 17365, 24311, 24495, 32163, 34293, 52095, 53605, 57155, 72933, 75047, 121555, 160815, 171465, 225141, 246583, 364665, 375235, 739749, 1125705, 1232915, 1726081, 3698745, 5178243, 8630405, 25891215]

約数ペア:

[(1, 25891215), (3, 8630405), (5, 5178243), (7, 3698745), (15, 1726081), (21, 1232915), (23, 1125705), (35, 739749), (69, 375235), (71, 364665), (105, 246583), (115, 225141), (151, 171465), (161, 160815), (213, 121555), (345, 75047), (355, 72933), (453, 57155), (483, 53605), (497, 52095), (755, 34293), (805, 32163), (1057, 24495), (1065, 24311), (1491, 17365), (1633, 15855), (2265, 11431), (2415, 10721), (2485, 10419), (3171, 8165), (3473, 7455), (4899, 5285)]