19809360

素因数分解:

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

素因数の和:1047

約数の個数: 120

約数和(自身を含む): 69058080

約数和(自身を除く): 49248720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1019, 1080, 1215, 1296, 1620, 1944, 2038, 2160, 2430, 3057, 3240, 3888, 4076, 4860, 5095, 6114, 6480, 8152, 9171, 9720, 10190, 12228, 15285, 16304, 18342, 19440, 20380, 24456, 27513, 30570, 36684, 40760, 45855, 48912, 55026, 61140, 73368, 81520, 82539, 91710, 110052, 122280, 137565, 146736, 165078, 183420, 220104, 244560, 247617, 275130, 330156, 366840, 412695, 440208, 495234, 550260, 660312, 733680, 825390, 990468, 1100520, 1238085, 1320624, 1650780, 1980936, 2201040, 2476170, 3301560, 3961872, 4952340, 6603120, 9904680, 19809360]

約数ペア:

[(1, 19809360), (2, 9904680), (3, 6603120), (4, 4952340), (5, 3961872), (6, 3301560), (8, 2476170), (9, 2201040), (10, 1980936), (12, 1650780), (15, 1320624), (16, 1238085), (18, 1100520), (20, 990468), (24, 825390), (27, 733680), (30, 660312), (36, 550260), (40, 495234), (45, 440208), (48, 412695), (54, 366840), (60, 330156), (72, 275130), (80, 247617), (81, 244560), (90, 220104), (108, 183420), (120, 165078), (135, 146736), (144, 137565), (162, 122280), (180, 110052), (216, 91710), (240, 82539), (243, 81520), (270, 73368), (324, 61140), (360, 55026), (405, 48912), (432, 45855), (486, 40760), (540, 36684), (648, 30570), (720, 27513), (810, 24456), (972, 20380), (1019, 19440), (1080, 18342), (1215, 16304), (1296, 15285), (1620, 12228), (1944, 10190), (2038, 9720), (2160, 9171), (2430, 8152), (3057, 6480), (3240, 6114), (3888, 5095), (4076, 4860)]