19977840

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3083}}^1$

素因数の和:3108

約数の個数: 100

約数和(自身を含む): 69408504

約数和(自身を除く): 49430664

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, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3083, 3240, 6166, 6480, 9249, 12332, 15415, 18498, 24664, 27747, 30830, 36996, 46245, 49328, 55494, 61660, 73992, 83241, 92490, 110988, 123320, 138735, 147984, 166482, 184980, 221976, 246640, 249723, 277470, 332964, 369960, 416205, 443952, 499446, 554940, 665928, 739920, 832410, 998892, 1109880, 1248615, 1331856, 1664820, 1997784, 2219760, 2497230, 3329640, 3995568, 4994460, 6659280, 9988920, 19977840]

約数ペア:

[(1, 19977840), (2, 9988920), (3, 6659280), (4, 4994460), (5, 3995568), (6, 3329640), (8, 2497230), (9, 2219760), (10, 1997784), (12, 1664820), (15, 1331856), (16, 1248615), (18, 1109880), (20, 998892), (24, 832410), (27, 739920), (30, 665928), (36, 554940), (40, 499446), (45, 443952), (48, 416205), (54, 369960), (60, 332964), (72, 277470), (80, 249723), (81, 246640), (90, 221976), (108, 184980), (120, 166482), (135, 147984), (144, 138735), (162, 123320), (180, 110988), (216, 92490), (240, 83241), (270, 73992), (324, 61660), (360, 55494), (405, 49328), (432, 46245), (540, 36996), (648, 30830), (720, 27747), (810, 24664), (1080, 18498), (1296, 15415), (1620, 12332), (2160, 9249), (3083, 6480), (3240, 6166)]