641365060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{23021}}^1$

素因数の和:23236

約数の個数: 48

約数和(自身を含む): 1547078400

約数和(自身を除く): 905713340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 13930, 23021, 27860, 46042, 92084, 115105, 161147, 230210, 322294, 460420, 644588, 805735, 1611470, 3222940, 4581179, 9162358, 18324716, 22905895, 32068253, 45811790, 64136506, 91623580, 128273012, 160341265, 320682530, 641365060]

約数ペア:

[(1, 641365060), (2, 320682530), (4, 160341265), (5, 128273012), (7, 91623580), (10, 64136506), (14, 45811790), (20, 32068253), (28, 22905895), (35, 18324716), (70, 9162358), (140, 4581179), (199, 3222940), (398, 1611470), (796, 805735), (995, 644588), (1393, 460420), (1990, 322294), (2786, 230210), (3980, 161147), (5572, 115105), (6965, 92084), (13930, 46042), (23021, 27860)]