81181376

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{661}}^1$

素因数の和:793

約数の個数: 56

約数和(自身を含む): 171510960

約数和(自身を除く): 90329584

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 101, 152, 202, 304, 404, 608, 661, 808, 1216, 1322, 1616, 1919, 2644, 3232, 3838, 5288, 6464, 7676, 10576, 12559, 15352, 21152, 25118, 30704, 42304, 50236, 61408, 66761, 100472, 122816, 133522, 200944, 267044, 401888, 534088, 803776, 1068176, 1268459, 2136352, 2536918, 4272704, 5073836, 10147672, 20295344, 40590688, 81181376]

約数ペア:

[(1, 81181376), (2, 40590688), (4, 20295344), (8, 10147672), (16, 5073836), (19, 4272704), (32, 2536918), (38, 2136352), (64, 1268459), (76, 1068176), (101, 803776), (152, 534088), (202, 401888), (304, 267044), (404, 200944), (608, 133522), (661, 122816), (808, 100472), (1216, 66761), (1322, 61408), (1616, 50236), (1919, 42304), (2644, 30704), (3232, 25118), (3838, 21152), (5288, 15352), (6464, 12559), (7676, 10576)]