280684016

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{1171}}^1$

素因数の和:1461

約数の個数: 40

約数和(自身を含む): 554571648

約数和(自身を除く): 273887632

約数列:

[1, 2, 4, 8, 16, 71, 142, 211, 284, 422, 568, 844, 1136, 1171, 1688, 2342, 3376, 4684, 9368, 14981, 18736, 29962, 59924, 83141, 119848, 166282, 239696, 247081, 332564, 494162, 665128, 988324, 1330256, 1976648, 3953296, 17542751, 35085502, 70171004, 140342008, 280684016]

約数ペア:

[(1, 280684016), (2, 140342008), (4, 70171004), (8, 35085502), (16, 17542751), (71, 3953296), (142, 1976648), (211, 1330256), (284, 988324), (422, 665128), (568, 494162), (844, 332564), (1136, 247081), (1171, 239696), (1688, 166282), (2342, 119848), (3376, 83141), (4684, 59924), (9368, 29962), (14981, 18736)]