20909664

素因数分解:

$2^5\times 3^5\times {\mathrm{2689}}^1$

素因数の和:2714

約数の個数: 72

約数和(自身を含む): 61687080

約数和(自身を除く): 40777416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 243, 288, 324, 432, 486, 648, 864, 972, 1296, 1944, 2592, 2689, 3888, 5378, 7776, 8067, 10756, 16134, 21512, 24201, 32268, 43024, 48402, 64536, 72603, 86048, 96804, 129072, 145206, 193608, 217809, 258144, 290412, 387216, 435618, 580824, 653427, 774432, 871236, 1161648, 1306854, 1742472, 2323296, 2613708, 3484944, 5227416, 6969888, 10454832, 20909664]

約数ペア:

[(1, 20909664), (2, 10454832), (3, 6969888), (4, 5227416), (6, 3484944), (8, 2613708), (9, 2323296), (12, 1742472), (16, 1306854), (18, 1161648), (24, 871236), (27, 774432), (32, 653427), (36, 580824), (48, 435618), (54, 387216), (72, 290412), (81, 258144), (96, 217809), (108, 193608), (144, 145206), (162, 129072), (216, 96804), (243, 86048), (288, 72603), (324, 64536), (432, 48402), (486, 43024), (648, 32268), (864, 24201), (972, 21512), (1296, 16134), (1944, 10756), (2592, 8067), (2689, 7776), (3888, 5378)]