20137089580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{746371}}^1$

素因数の和:746470

約数の個数: 48

約数和(自身を含む): 45140578560

約数和(自身を除く): 25003488980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2698, 5396, 6745, 13490, 26980, 746371, 1492742, 2985484, 3731855, 7463710, 14181049, 14927420, 28362098, 52992341, 56724196, 70905245, 105984682, 141810490, 211969364, 264961705, 283620980, 529923410, 1006854479, 1059846820, 2013708958, 4027417916, 5034272395, 10068544790, 20137089580]

約数ペア:

[(1, 20137089580), (2, 10068544790), (4, 5034272395), (5, 4027417916), (10, 2013708958), (19, 1059846820), (20, 1006854479), (38, 529923410), (71, 283620980), (76, 264961705), (95, 211969364), (142, 141810490), (190, 105984682), (284, 70905245), (355, 56724196), (380, 52992341), (710, 28362098), (1349, 14927420), (1420, 14181049), (2698, 7463710), (5396, 3731855), (6745, 2985484), (13490, 1492742), (26980, 746371)]