20493856

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{911}}^1$

素因数の和:977

約数の個数: 48

約数和(自身を含む): 43666560

約数和(自身を除く): 23172704

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 74, 76, 148, 152, 296, 304, 592, 608, 703, 911, 1184, 1406, 1822, 2812, 3644, 5624, 7288, 11248, 14576, 17309, 22496, 29152, 33707, 34618, 67414, 69236, 134828, 138472, 269656, 276944, 539312, 553888, 640433, 1078624, 1280866, 2561732, 5123464, 10246928, 20493856]

約数ペア:

[(1, 20493856), (2, 10246928), (4, 5123464), (8, 2561732), (16, 1280866), (19, 1078624), (32, 640433), (37, 553888), (38, 539312), (74, 276944), (76, 269656), (148, 138472), (152, 134828), (296, 69236), (304, 67414), (592, 34618), (608, 33707), (703, 29152), (911, 22496), (1184, 17309), (1406, 14576), (1822, 11248), (2812, 7288), (3644, 5624)]