13047280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5261}}^1$

素因数の和:5305

約数の個数: 40

約数和(自身を含む): 31319424

約数和(自身を除く): 18272144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5261, 10522, 21044, 26305, 42088, 52610, 84176, 105220, 163091, 210440, 326182, 420880, 652364, 815455, 1304728, 1630910, 2609456, 3261820, 6523640, 13047280]

約数ペア:

[(1, 13047280), (2, 6523640), (4, 3261820), (5, 2609456), (8, 1630910), (10, 1304728), (16, 815455), (20, 652364), (31, 420880), (40, 326182), (62, 210440), (80, 163091), (124, 105220), (155, 84176), (248, 52610), (310, 42088), (496, 26305), (620, 21044), (1240, 10522), (2480, 5261)]