19003940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 41757744

約数和(自身を除く): 22753804

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 421, 610, 740, 842, 1220, 1684, 2105, 2257, 4210, 4514, 8420, 9028, 11285, 15577, 22570, 25681, 31154, 45140, 51362, 62308, 77885, 102724, 128405, 155770, 256810, 311540, 513620, 950197, 1900394, 3800788, 4750985, 9501970, 19003940]

約数ペア:

[(1, 19003940), (2, 9501970), (4, 4750985), (5, 3800788), (10, 1900394), (20, 950197), (37, 513620), (61, 311540), (74, 256810), (122, 155770), (148, 128405), (185, 102724), (244, 77885), (305, 62308), (370, 51362), (421, 45140), (610, 31154), (740, 25681), (842, 22570), (1220, 15577), (1684, 11285), (2105, 9028), (2257, 8420), (4210, 4514)]