77077780

素因数分解:

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

素因数の和:257

約数の個数: 96

約数和(自身を含む): 183794688

約数和(自身を除く): 106716908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 73, 124, 130, 131, 146, 155, 260, 262, 292, 310, 365, 403, 524, 620, 655, 730, 806, 949, 1310, 1460, 1612, 1703, 1898, 2015, 2263, 2620, 3406, 3796, 4030, 4061, 4526, 4745, 6812, 8060, 8122, 8515, 9052, 9490, 9563, 11315, 16244, 17030, 18980, 19126, 20305, 22630, 29419, 34060, 38252, 40610, 45260, 47815, 52793, 58838, 81220, 95630, 105586, 117676, 124319, 147095, 191260, 211172, 248638, 263965, 294190, 296453, 497276, 527930, 588380, 592906, 621595, 1055860, 1185812, 1243190, 1482265, 2486380, 2964530, 3853889, 5929060, 7707778, 15415556, 19269445, 38538890, 77077780]

約数ペア:

[(1, 77077780), (2, 38538890), (4, 19269445), (5, 15415556), (10, 7707778), (13, 5929060), (20, 3853889), (26, 2964530), (31, 2486380), (52, 1482265), (62, 1243190), (65, 1185812), (73, 1055860), (124, 621595), (130, 592906), (131, 588380), (146, 527930), (155, 497276), (260, 296453), (262, 294190), (292, 263965), (310, 248638), (365, 211172), (403, 191260), (524, 147095), (620, 124319), (655, 117676), (730, 105586), (806, 95630), (949, 81220), (1310, 58838), (1460, 52793), (1612, 47815), (1703, 45260), (1898, 40610), (2015, 38252), (2263, 34060), (2620, 29419), (3406, 22630), (3796, 20305), (4030, 19126), (4061, 18980), (4526, 17030), (4745, 16244), (6812, 11315), (8060, 9563), (8122, 9490), (8515, 9052)]