81719992

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{1109}}^1$

素因数の和:1327

約数の個数: 32

約数和(自身を含む): 156909600

約数和(自身を除く): 75189608

約数列:

[1, 2, 4, 8, 61, 122, 151, 244, 302, 488, 604, 1109, 1208, 2218, 4436, 8872, 9211, 18422, 36844, 67649, 73688, 135298, 167459, 270596, 334918, 541192, 669836, 1339672, 10214999, 20429998, 40859996, 81719992]

約数ペア:

[(1, 81719992), (2, 40859996), (4, 20429998), (8, 10214999), (61, 1339672), (122, 669836), (151, 541192), (244, 334918), (302, 270596), (488, 167459), (604, 135298), (1109, 73688), (1208, 67649), (2218, 36844), (4436, 18422), (8872, 9211)]