77779000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 203374080

約数和(自身を除く): 125595080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 104, 124, 125, 130, 155, 193, 200, 248, 250, 260, 310, 325, 386, 403, 500, 520, 620, 650, 772, 775, 806, 965, 1000, 1240, 1300, 1544, 1550, 1612, 1625, 1930, 2015, 2509, 2600, 3100, 3224, 3250, 3860, 3875, 4030, 4825, 5018, 5983, 6200, 6500, 7720, 7750, 8060, 9650, 10036, 10075, 11966, 12545, 13000, 15500, 16120, 19300, 20072, 20150, 23932, 24125, 25090, 29915, 31000, 38600, 40300, 47864, 48250, 50180, 50375, 59830, 62725, 77779, 80600, 96500, 100360, 100750, 119660, 125450, 149575, 155558, 193000, 201500, 239320, 250900, 299150, 311116, 313625, 388895, 403000, 501800, 598300, 622232, 627250, 747875, 777790, 1196600, 1254500, 1495750, 1555580, 1944475, 2509000, 2991500, 3111160, 3888950, 5983000, 7777900, 9722375, 15555800, 19444750, 38889500, 77779000]

約数ペア:

[(1, 77779000), (2, 38889500), (4, 19444750), (5, 15555800), (8, 9722375), (10, 7777900), (13, 5983000), (20, 3888950), (25, 3111160), (26, 2991500), (31, 2509000), (40, 1944475), (50, 1555580), (52, 1495750), (62, 1254500), (65, 1196600), (100, 777790), (104, 747875), (124, 627250), (125, 622232), (130, 598300), (155, 501800), (193, 403000), (200, 388895), (248, 313625), (250, 311116), (260, 299150), (310, 250900), (325, 239320), (386, 201500), (403, 193000), (500, 155558), (520, 149575), (620, 125450), (650, 119660), (772, 100750), (775, 100360), (806, 96500), (965, 80600), (1000, 77779), (1240, 62725), (1300, 59830), (1544, 50375), (1550, 50180), (1612, 48250), (1625, 47864), (1930, 40300), (2015, 38600), (2509, 31000), (2600, 29915), (3100, 25090), (3224, 24125), (3250, 23932), (3860, 20150), (3875, 20072), (4030, 19300), (4825, 16120), (5018, 15500), (5983, 13000), (6200, 12545), (6500, 11966), (7720, 10075), (7750, 10036), (8060, 9650)]