15721447540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1\times {\mathrm{34421}}^1$

素因数の和:35028

約数の個数: 48

約数和(自身を含む): 33881987664

約数和(自身を除く): 18160540124

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 557, 820, 1114, 2228, 2785, 5570, 11140, 22837, 34421, 45674, 68842, 91348, 114185, 137684, 172105, 228370, 344210, 456740, 688420, 1411261, 2822522, 5645044, 7056305, 14112610, 19172497, 28225220, 38344994, 76689988, 95862485, 191724970, 383449940, 786072377, 1572144754, 3144289508, 3930361885, 7860723770, 15721447540]

約数ペア:

[(1, 15721447540), (2, 7860723770), (4, 3930361885), (5, 3144289508), (10, 1572144754), (20, 786072377), (41, 383449940), (82, 191724970), (164, 95862485), (205, 76689988), (410, 38344994), (557, 28225220), (820, 19172497), (1114, 14112610), (2228, 7056305), (2785, 5645044), (5570, 2822522), (11140, 1411261), (22837, 688420), (34421, 456740), (45674, 344210), (68842, 228370), (91348, 172105), (114185, 137684)]