38538890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 78769152

約数和(自身を除く): 40230262

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 73, 130, 131, 146, 155, 262, 310, 365, 403, 655, 730, 806, 949, 1310, 1703, 1898, 2015, 2263, 3406, 4030, 4061, 4526, 4745, 8122, 8515, 9490, 9563, 11315, 17030, 19126, 20305, 22630, 29419, 40610, 47815, 52793, 58838, 95630, 105586, 124319, 147095, 248638, 263965, 294190, 296453, 527930, 592906, 621595, 1243190, 1482265, 2964530, 3853889, 7707778, 19269445, 38538890]

約数ペア:

[(1, 38538890), (2, 19269445), (5, 7707778), (10, 3853889), (13, 2964530), (26, 1482265), (31, 1243190), (62, 621595), (65, 592906), (73, 527930), (130, 296453), (131, 294190), (146, 263965), (155, 248638), (262, 147095), (310, 124319), (365, 105586), (403, 95630), (655, 58838), (730, 52793), (806, 47815), (949, 40610), (1310, 29419), (1703, 22630), (1898, 20305), (2015, 19126), (2263, 17030), (3406, 11315), (4030, 9563), (4061, 9490), (4526, 8515), (4745, 8122)]