128654340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^2$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 373271808

約数和(自身を除く): 244617468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 263, 310, 372, 465, 526, 620, 789, 930, 1052, 1315, 1578, 1860, 2630, 3156, 3945, 5260, 7890, 8153, 15780, 16306, 24459, 32612, 40765, 48918, 69169, 81530, 97836, 122295, 138338, 163060, 207507, 244590, 276676, 345845, 415014, 489180, 691690, 830028, 1037535, 1383380, 2075070, 2144239, 4150140, 4288478, 6432717, 8576956, 10721195, 12865434, 21442390, 25730868, 32163585, 42884780, 64327170, 128654340]

約数ペア:

[(1, 128654340), (2, 64327170), (3, 42884780), (4, 32163585), (5, 25730868), (6, 21442390), (10, 12865434), (12, 10721195), (15, 8576956), (20, 6432717), (30, 4288478), (31, 4150140), (60, 2144239), (62, 2075070), (93, 1383380), (124, 1037535), (155, 830028), (186, 691690), (263, 489180), (310, 415014), (372, 345845), (465, 276676), (526, 244590), (620, 207507), (789, 163060), (930, 138338), (1052, 122295), (1315, 97836), (1578, 81530), (1860, 69169), (2630, 48918), (3156, 40765), (3945, 32612), (5260, 24459), (7890, 16306), (8153, 15780)]