8442980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4639}}^1$

素因数の和:4668

約数の個数: 48

約数和(自身を含む): 21826560

約数和(自身を除く): 13383580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 4639, 9278, 18556, 23195, 32473, 46390, 60307, 64946, 92780, 120614, 129892, 162365, 241228, 301535, 324730, 422149, 603070, 649460, 844298, 1206140, 1688596, 2110745, 4221490, 8442980]

約数ペア:

[(1, 8442980), (2, 4221490), (4, 2110745), (5, 1688596), (7, 1206140), (10, 844298), (13, 649460), (14, 603070), (20, 422149), (26, 324730), (28, 301535), (35, 241228), (52, 162365), (65, 129892), (70, 120614), (91, 92780), (130, 64946), (140, 60307), (182, 46390), (260, 32473), (364, 23195), (455, 18556), (910, 9278), (1820, 4639)]