81445856

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1381}}^1$

素因数の和:1507

約数の個数: 48

約数和(自身を含む): 170649360

約数和(自身を除く): 89203504

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 97, 152, 194, 304, 388, 608, 776, 1381, 1552, 1843, 2762, 3104, 3686, 5524, 7372, 11048, 14744, 22096, 26239, 29488, 44192, 52478, 58976, 104956, 133957, 209912, 267914, 419824, 535828, 839648, 1071656, 2143312, 2545183, 4286624, 5090366, 10180732, 20361464, 40722928, 81445856]

約数ペア:

[(1, 81445856), (2, 40722928), (4, 20361464), (8, 10180732), (16, 5090366), (19, 4286624), (32, 2545183), (38, 2143312), (76, 1071656), (97, 839648), (152, 535828), (194, 419824), (304, 267914), (388, 209912), (608, 133957), (776, 104956), (1381, 58976), (1552, 52478), (1843, 44192), (2762, 29488), (3104, 26239), (3686, 22096), (5524, 14744), (7372, 11048)]