389904580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{3253}}^1$

素因数の和:3736

約数の個数: 48

約数和(自身を含む): 883968624

約数和(自身を除く): 494064044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 461, 922, 1844, 2305, 3253, 4610, 5993, 6506, 9220, 11986, 13012, 16265, 23972, 29965, 32530, 42289, 59930, 65060, 84578, 119860, 169156, 211445, 422890, 845780, 1499633, 2999266, 5998532, 7498165, 14996330, 19495229, 29992660, 38990458, 77980916, 97476145, 194952290, 389904580]

約数ペア:

[(1, 389904580), (2, 194952290), (4, 97476145), (5, 77980916), (10, 38990458), (13, 29992660), (20, 19495229), (26, 14996330), (52, 7498165), (65, 5998532), (130, 2999266), (260, 1499633), (461, 845780), (922, 422890), (1844, 211445), (2305, 169156), (3253, 119860), (4610, 84578), (5993, 65060), (6506, 59930), (9220, 42289), (11986, 32530), (13012, 29965), (16265, 23972)]