128227408

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{419}}^1\times {\mathrm{617}}^1$

素因数の和:1075

約数の個数: 40

約数和(自身を含む): 257483520

約数和(自身を除く): 129256112

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 419, 496, 617, 838, 1234, 1676, 2468, 3352, 4936, 6704, 9872, 12989, 19127, 25978, 38254, 51956, 76508, 103912, 153016, 207824, 258523, 306032, 517046, 1034092, 2068184, 4136368, 8014213, 16028426, 32056852, 64113704, 128227408]

約数ペア:

[(1, 128227408), (2, 64113704), (4, 32056852), (8, 16028426), (16, 8014213), (31, 4136368), (62, 2068184), (124, 1034092), (248, 517046), (419, 306032), (496, 258523), (617, 207824), (838, 153016), (1234, 103912), (1676, 76508), (2468, 51956), (3352, 38254), (4936, 25978), (6704, 19127), (9872, 12989)]