31111600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:255

約数の個数: 120

約数和(自身を含む): 83522432

約数和(自身を除く): 52410832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 193, 200, 208, 248, 260, 310, 325, 386, 400, 403, 496, 520, 620, 650, 772, 775, 806, 965, 1040, 1240, 1300, 1544, 1550, 1612, 1930, 2015, 2480, 2509, 2600, 3088, 3100, 3224, 3860, 4030, 4825, 5018, 5200, 5983, 6200, 6448, 7720, 8060, 9650, 10036, 10075, 11966, 12400, 12545, 15440, 16120, 19300, 20072, 20150, 23932, 25090, 29915, 32240, 38600, 40144, 40300, 47864, 50180, 59830, 62725, 77200, 77779, 80600, 95728, 100360, 119660, 125450, 149575, 155558, 161200, 200720, 239320, 250900, 299150, 311116, 388895, 478640, 501800, 598300, 622232, 777790, 1003600, 1196600, 1244464, 1555580, 1944475, 2393200, 3111160, 3888950, 6222320, 7777900, 15555800, 31111600]

約数ペア:

[(1, 31111600), (2, 15555800), (4, 7777900), (5, 6222320), (8, 3888950), (10, 3111160), (13, 2393200), (16, 1944475), (20, 1555580), (25, 1244464), (26, 1196600), (31, 1003600), (40, 777790), (50, 622232), (52, 598300), (62, 501800), (65, 478640), (80, 388895), (100, 311116), (104, 299150), (124, 250900), (130, 239320), (155, 200720), (193, 161200), (200, 155558), (208, 149575), (248, 125450), (260, 119660), (310, 100360), (325, 95728), (386, 80600), (400, 77779), (403, 77200), (496, 62725), (520, 59830), (620, 50180), (650, 47864), (772, 40300), (775, 40144), (806, 38600), (965, 32240), (1040, 29915), (1240, 25090), (1300, 23932), (1544, 20150), (1550, 20072), (1612, 19300), (1930, 16120), (2015, 15440), (2480, 12545), (2509, 12400), (2600, 11966), (3088, 10075), (3100, 10036), (3224, 9650), (3860, 8060), (4030, 7720), (4825, 6448), (5018, 6200), (5200, 5983)]