20726880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1489}}^1$

素因数の和:1536

約数の個数: 96

約数和(自身を含む): 67586400

約数和(自身を除く): 46859520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 80, 87, 96, 116, 120, 145, 160, 174, 232, 240, 290, 348, 435, 464, 480, 580, 696, 870, 928, 1160, 1392, 1489, 1740, 2320, 2784, 2978, 3480, 4467, 4640, 5956, 6960, 7445, 8934, 11912, 13920, 14890, 17868, 22335, 23824, 29780, 35736, 43181, 44670, 47648, 59560, 71472, 86362, 89340, 119120, 129543, 142944, 172724, 178680, 215905, 238240, 259086, 345448, 357360, 431810, 518172, 647715, 690896, 714720, 863620, 1036344, 1295430, 1381792, 1727240, 2072688, 2590860, 3454480, 4145376, 5181720, 6908960, 10363440, 20726880]

約数ペア:

[(1, 20726880), (2, 10363440), (3, 6908960), (4, 5181720), (5, 4145376), (6, 3454480), (8, 2590860), (10, 2072688), (12, 1727240), (15, 1381792), (16, 1295430), (20, 1036344), (24, 863620), (29, 714720), (30, 690896), (32, 647715), (40, 518172), (48, 431810), (58, 357360), (60, 345448), (80, 259086), (87, 238240), (96, 215905), (116, 178680), (120, 172724), (145, 142944), (160, 129543), (174, 119120), (232, 89340), (240, 86362), (290, 71472), (348, 59560), (435, 47648), (464, 44670), (480, 43181), (580, 35736), (696, 29780), (870, 23824), (928, 22335), (1160, 17868), (1392, 14890), (1489, 13920), (1740, 11912), (2320, 8934), (2784, 7445), (2978, 6960), (3480, 5956), (4467, 4640)]