20604960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:411

約数の個数: 144

約数和(自身を含む): 72235800

約数和(自身を除く): 51630840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 205, 240, 246, 288, 328, 349, 360, 369, 410, 480, 492, 615, 656, 698, 720, 738, 820, 984, 1047, 1230, 1312, 1396, 1440, 1476, 1640, 1745, 1845, 1968, 2094, 2460, 2792, 2952, 3141, 3280, 3490, 3690, 3936, 4188, 4920, 5235, 5584, 5904, 6282, 6560, 6980, 7380, 8376, 9840, 10470, 11168, 11808, 12564, 13960, 14309, 14760, 15705, 16752, 19680, 20940, 25128, 27920, 28618, 29520, 31410, 33504, 41880, 42927, 50256, 55840, 57236, 59040, 62820, 71545, 83760, 85854, 100512, 114472, 125640, 128781, 143090, 167520, 171708, 214635, 228944, 251280, 257562, 286180, 343416, 429270, 457888, 502560, 515124, 572360, 643905, 686832, 858540, 1030248, 1144720, 1287810, 1373664, 1717080, 2060496, 2289440, 2575620, 3434160, 4120992, 5151240, 6868320, 10302480, 20604960]

約数ペア:

[(1, 20604960), (2, 10302480), (3, 6868320), (4, 5151240), (5, 4120992), (6, 3434160), (8, 2575620), (9, 2289440), (10, 2060496), (12, 1717080), (15, 1373664), (16, 1287810), (18, 1144720), (20, 1030248), (24, 858540), (30, 686832), (32, 643905), (36, 572360), (40, 515124), (41, 502560), (45, 457888), (48, 429270), (60, 343416), (72, 286180), (80, 257562), (82, 251280), (90, 228944), (96, 214635), (120, 171708), (123, 167520), (144, 143090), (160, 128781), (164, 125640), (180, 114472), (205, 100512), (240, 85854), (246, 83760), (288, 71545), (328, 62820), (349, 59040), (360, 57236), (369, 55840), (410, 50256), (480, 42927), (492, 41880), (615, 33504), (656, 31410), (698, 29520), (720, 28618), (738, 27920), (820, 25128), (984, 20940), (1047, 19680), (1230, 16752), (1312, 15705), (1396, 14760), (1440, 14309), (1476, 13960), (1640, 12564), (1745, 11808), (1845, 11168), (1968, 10470), (2094, 9840), (2460, 8376), (2792, 7380), (2952, 6980), (3141, 6560), (3280, 6282), (3490, 5904), (3690, 5584), (3936, 5235), (4188, 4920)]