20817504

素因数分解:

$2^5\times 3^2\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:141

約数の個数: 108

約数和(自身を含む): 62090028

約数和(自身を除く): 41272524

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 41, 43, 48, 72, 82, 86, 96, 123, 129, 144, 164, 172, 246, 258, 288, 328, 344, 369, 387, 492, 516, 656, 688, 738, 774, 984, 1032, 1312, 1376, 1476, 1548, 1681, 1763, 1968, 2064, 2952, 3096, 3362, 3526, 3936, 4128, 5043, 5289, 5904, 6192, 6724, 7052, 10086, 10578, 11808, 12384, 13448, 14104, 15129, 15867, 20172, 21156, 26896, 28208, 30258, 31734, 40344, 42312, 53792, 56416, 60516, 63468, 72283, 80688, 84624, 121032, 126936, 144566, 161376, 169248, 216849, 242064, 253872, 289132, 433698, 484128, 507744, 578264, 650547, 867396, 1156528, 1301094, 1734792, 2313056, 2602188, 3469584, 5204376, 6939168, 10408752, 20817504]

約数ペア:

[(1, 20817504), (2, 10408752), (3, 6939168), (4, 5204376), (6, 3469584), (8, 2602188), (9, 2313056), (12, 1734792), (16, 1301094), (18, 1156528), (24, 867396), (32, 650547), (36, 578264), (41, 507744), (43, 484128), (48, 433698), (72, 289132), (82, 253872), (86, 242064), (96, 216849), (123, 169248), (129, 161376), (144, 144566), (164, 126936), (172, 121032), (246, 84624), (258, 80688), (288, 72283), (328, 63468), (344, 60516), (369, 56416), (387, 53792), (492, 42312), (516, 40344), (656, 31734), (688, 30258), (738, 28208), (774, 26896), (984, 21156), (1032, 20172), (1312, 15867), (1376, 15129), (1476, 14104), (1548, 13448), (1681, 12384), (1763, 11808), (1968, 10578), (2064, 10086), (2952, 7052), (3096, 6724), (3362, 6192), (3526, 5904), (3936, 5289), (4128, 5043)]