78947750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 170501760

約数和(自身を除く): 91554010

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 197, 229, 250, 350, 394, 458, 875, 985, 1145, 1379, 1603, 1750, 1970, 2290, 2758, 3206, 4925, 5725, 6895, 8015, 9850, 11450, 13790, 16030, 24625, 28625, 34475, 40075, 45113, 49250, 57250, 68950, 80150, 90226, 172375, 200375, 225565, 315791, 344750, 400750, 451130, 631582, 1127825, 1578955, 2255650, 3157910, 5639125, 7894775, 11278250, 15789550, 39473875, 78947750]

約数ペア:

[(1, 78947750), (2, 39473875), (5, 15789550), (7, 11278250), (10, 7894775), (14, 5639125), (25, 3157910), (35, 2255650), (50, 1578955), (70, 1127825), (125, 631582), (175, 451130), (197, 400750), (229, 344750), (250, 315791), (350, 225565), (394, 200375), (458, 172375), (875, 90226), (985, 80150), (1145, 68950), (1379, 57250), (1603, 49250), (1750, 45113), (1970, 40075), (2290, 34475), (2758, 28625), (3206, 24625), (4925, 16030), (5725, 13790), (6895, 11450), (8015, 9850)]