19846980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110261}}^1$

素因数の和:110276

約数の個数: 36

約数和(自身を含む): 60203052

約数和(自身を除く): 40356072

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110261, 220522, 330783, 441044, 551305, 661566, 992349, 1102610, 1323132, 1653915, 1984698, 2205220, 3307830, 3969396, 4961745, 6615660, 9923490, 19846980]

約数ペア:

[(1, 19846980), (2, 9923490), (3, 6615660), (4, 4961745), (5, 3969396), (6, 3307830), (9, 2205220), (10, 1984698), (12, 1653915), (15, 1323132), (18, 1102610), (20, 992349), (30, 661566), (36, 551305), (45, 441044), (60, 330783), (90, 220522), (180, 110261)]