258809880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{308107}}^1$

素因数の和:308128

約数の個数: 64

約数和(自身を含む): 887351040

約数和(自身を除く): 628541160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 308107, 616214, 924321, 1232428, 1540535, 1848642, 2156749, 2464856, 3081070, 3697284, 4313498, 4621605, 6162140, 6470247, 7394568, 8626996, 9243210, 10783745, 12324280, 12940494, 17253992, 18486420, 21567490, 25880988, 32351235, 36972840, 43134980, 51761976, 64702470, 86269960, 129404940, 258809880]

約数ペア:

[(1, 258809880), (2, 129404940), (3, 86269960), (4, 64702470), (5, 51761976), (6, 43134980), (7, 36972840), (8, 32351235), (10, 25880988), (12, 21567490), (14, 18486420), (15, 17253992), (20, 12940494), (21, 12324280), (24, 10783745), (28, 9243210), (30, 8626996), (35, 7394568), (40, 6470247), (42, 6162140), (56, 4621605), (60, 4313498), (70, 3697284), (84, 3081070), (105, 2464856), (120, 2156749), (140, 1848642), (168, 1540535), (210, 1232428), (280, 924321), (420, 616214), (840, 308107)]