19703580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25261}}^1$

素因数の和:25286

約数の個数: 48

約数和(自身を含む): 59416224

約数和(自身を除く): 39712644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25261, 50522, 75783, 101044, 126305, 151566, 252610, 303132, 328393, 378915, 505220, 656786, 757830, 985179, 1313572, 1515660, 1641965, 1970358, 3283930, 3940716, 4925895, 6567860, 9851790, 19703580]

約数ペア:

[(1, 19703580), (2, 9851790), (3, 6567860), (4, 4925895), (5, 3940716), (6, 3283930), (10, 1970358), (12, 1641965), (13, 1515660), (15, 1313572), (20, 985179), (26, 757830), (30, 656786), (39, 505220), (52, 378915), (60, 328393), (65, 303132), (78, 252610), (130, 151566), (156, 126305), (195, 101044), (260, 75783), (390, 50522), (780, 25261)]