128876920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^2$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 313326720

約数和(自身を除く): 184449800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 53, 62, 74, 106, 124, 148, 155, 185, 212, 248, 265, 296, 310, 370, 424, 530, 620, 740, 1060, 1147, 1240, 1480, 1643, 1961, 2120, 2294, 2809, 3286, 3922, 4588, 5618, 5735, 6572, 7844, 8215, 9176, 9805, 11236, 11470, 13144, 14045, 15688, 16430, 19610, 22472, 22940, 28090, 32860, 39220, 45880, 56180, 60791, 65720, 78440, 87079, 103933, 112360, 121582, 174158, 207866, 243164, 303955, 348316, 415732, 435395, 486328, 519665, 607910, 696632, 831464, 870790, 1039330, 1215820, 1741580, 2078660, 2431640, 3221923, 3483160, 4157320, 6443846, 12887692, 16109615, 25775384, 32219230, 64438460, 128876920]

約数ペア:

[(1, 128876920), (2, 64438460), (4, 32219230), (5, 25775384), (8, 16109615), (10, 12887692), (20, 6443846), (31, 4157320), (37, 3483160), (40, 3221923), (53, 2431640), (62, 2078660), (74, 1741580), (106, 1215820), (124, 1039330), (148, 870790), (155, 831464), (185, 696632), (212, 607910), (248, 519665), (265, 486328), (296, 435395), (310, 415732), (370, 348316), (424, 303955), (530, 243164), (620, 207866), (740, 174158), (1060, 121582), (1147, 112360), (1240, 103933), (1480, 87079), (1643, 78440), (1961, 65720), (2120, 60791), (2294, 56180), (2809, 45880), (3286, 39220), (3922, 32860), (4588, 28090), (5618, 22940), (5735, 22472), (6572, 19610), (7844, 16430), (8215, 15688), (9176, 14045), (9805, 13144), (11236, 11470)]