388637860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{929}}^1\times {\mathrm{1609}}^1$

素因数の和:2560

約数の個数: 48

約数和(自身を含む): 880412400

約数和(自身を除く): 491774540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 929, 1609, 1858, 3218, 3716, 4645, 6436, 8045, 9290, 12077, 16090, 18580, 20917, 24154, 32180, 41834, 48308, 60385, 83668, 104585, 120770, 209170, 241540, 418340, 1494761, 2989522, 5979044, 7473805, 14947610, 19431893, 29895220, 38863786, 77727572, 97159465, 194318930, 388637860]

約数ペア:

[(1, 388637860), (2, 194318930), (4, 97159465), (5, 77727572), (10, 38863786), (13, 29895220), (20, 19431893), (26, 14947610), (52, 7473805), (65, 5979044), (130, 2989522), (260, 1494761), (929, 418340), (1609, 241540), (1858, 209170), (3218, 120770), (3716, 104585), (4645, 83668), (6436, 60385), (8045, 48308), (9290, 41834), (12077, 32180), (16090, 24154), (18580, 20917)]