728091581

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 870414336

約数和(自身を除く): 142322755

約数列:

[1, 7, 53, 71, 131, 211, 371, 497, 917, 1477, 3763, 6943, 9301, 11183, 14981, 26341, 27641, 48601, 65107, 78281, 104867, 193487, 492953, 793993, 1464973, 1962511, 3450671, 5557951, 10254811, 13737577, 104013083, 728091581]

約数ペア:

[(1, 728091581), (7, 104013083), (53, 13737577), (71, 10254811), (131, 5557951), (211, 3450671), (371, 1962511), (497, 1464973), (917, 793993), (1477, 492953), (3763, 193487), (6943, 104867), (9301, 78281), (11183, 65107), (14981, 48601), (26341, 27641)]