81438480

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1019}}^1$

素因数の和:1078

約数の個数: 160

約数和(自身を含む): 288374400

約数和(自身を除く): 206935920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 90, 108, 111, 120, 135, 144, 148, 180, 185, 216, 222, 240, 270, 296, 333, 360, 370, 432, 444, 540, 555, 592, 666, 720, 740, 888, 999, 1019, 1080, 1110, 1332, 1480, 1665, 1776, 1998, 2038, 2160, 2220, 2664, 2960, 3057, 3330, 3996, 4076, 4440, 4995, 5095, 5328, 6114, 6660, 7992, 8152, 8880, 9171, 9990, 10190, 12228, 13320, 15285, 15984, 16304, 18342, 19980, 20380, 24456, 26640, 27513, 30570, 36684, 37703, 39960, 40760, 45855, 48912, 55026, 61140, 73368, 75406, 79920, 81520, 91710, 110052, 113109, 122280, 137565, 146736, 150812, 183420, 188515, 220104, 226218, 244560, 275130, 301624, 339327, 366840, 377030, 440208, 452436, 550260, 565545, 603248, 678654, 733680, 754060, 904872, 1017981, 1100520, 1131090, 1357308, 1508120, 1696635, 1809744, 2035962, 2201040, 2262180, 2714616, 3016240, 3393270, 4071924, 4524360, 5089905, 5429232, 6786540, 8143848, 9048720, 10179810, 13573080, 16287696, 20359620, 27146160, 40719240, 81438480]

約数ペア:

[(1, 81438480), (2, 40719240), (3, 27146160), (4, 20359620), (5, 16287696), (6, 13573080), (8, 10179810), (9, 9048720), (10, 8143848), (12, 6786540), (15, 5429232), (16, 5089905), (18, 4524360), (20, 4071924), (24, 3393270), (27, 3016240), (30, 2714616), (36, 2262180), (37, 2201040), (40, 2035962), (45, 1809744), (48, 1696635), (54, 1508120), (60, 1357308), (72, 1131090), (74, 1100520), (80, 1017981), (90, 904872), (108, 754060), (111, 733680), (120, 678654), (135, 603248), (144, 565545), (148, 550260), (180, 452436), (185, 440208), (216, 377030), (222, 366840), (240, 339327), (270, 301624), (296, 275130), (333, 244560), (360, 226218), (370, 220104), (432, 188515), (444, 183420), (540, 150812), (555, 146736), (592, 137565), (666, 122280), (720, 113109), (740, 110052), (888, 91710), (999, 81520), (1019, 79920), (1080, 75406), (1110, 73368), (1332, 61140), (1480, 55026), (1665, 48912), (1776, 45855), (1998, 40760), (2038, 39960), (2160, 37703), (2220, 36684), (2664, 30570), (2960, 27513), (3057, 26640), (3330, 24456), (3996, 20380), (4076, 19980), (4440, 18342), (4995, 16304), (5095, 15984), (5328, 15285), (6114, 13320), (6660, 12228), (7992, 10190), (8152, 9990), (8880, 9171)]