81219376

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{38167}}^1$

素因数の和:38201

約数の個数: 40

約数和(自身を含む): 189313280

約数和(自身を除く): 108093904

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 38167, 76334, 152668, 267169, 305336, 534338, 610672, 725173, 1068676, 1450346, 2137352, 2900692, 4274704, 5076211, 5801384, 10152422, 11602768, 20304844, 40609688, 81219376]

約数ペア:

[(1, 81219376), (2, 40609688), (4, 20304844), (7, 11602768), (8, 10152422), (14, 5801384), (16, 5076211), (19, 4274704), (28, 2900692), (38, 2137352), (56, 1450346), (76, 1068676), (112, 725173), (133, 610672), (152, 534338), (266, 305336), (304, 267169), (532, 152668), (1064, 76334), (2128, 38167)]