640662495

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{43627}}^1$

素因数の和:43735

約数の個数: 32

約数和(自身を含む): 1130837760

約数和(自身を除く): 490175265

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 2937, 4895, 14685, 43627, 130881, 218135, 479897, 654405, 1439691, 2399485, 3882803, 7198455, 11648409, 19414015, 42710833, 58242045, 128132499, 213554165, 640662495]

約数ペア:

[(1, 640662495), (3, 213554165), (5, 128132499), (11, 58242045), (15, 42710833), (33, 19414015), (55, 11648409), (89, 7198455), (165, 3882803), (267, 2399485), (445, 1439691), (979, 654405), (1335, 479897), (2937, 218135), (4895, 130881), (14685, 43627)]