81557768

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{379}}^1\times {\mathrm{727}}^1$

素因数の和:1149

約数の個数: 32

約数和(自身を含む): 157684800

約数和(自身を除く): 76127032

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 379, 727, 758, 1454, 1516, 2908, 3032, 5816, 14023, 26899, 28046, 53798, 56092, 107596, 112184, 215192, 275533, 551066, 1102132, 2204264, 10194721, 20389442, 40778884, 81557768]

約数ペア:

[(1, 81557768), (2, 40778884), (4, 20389442), (8, 10194721), (37, 2204264), (74, 1102132), (148, 551066), (296, 275533), (379, 215192), (727, 112184), (758, 107596), (1454, 56092), (1516, 53798), (2908, 28046), (3032, 26899), (5816, 14023)]