20304405

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{113}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 40055040

約数和(自身を除く): 19750635

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 113, 121, 135, 165, 297, 339, 363, 495, 565, 605, 1017, 1089, 1243, 1331, 1485, 1695, 1815, 3051, 3267, 3729, 3993, 5085, 5445, 6215, 6655, 11187, 11979, 13673, 15255, 16335, 18645, 19965, 33561, 35937, 41019, 55935, 59895, 68365, 123057, 150403, 167805, 179685, 205095, 369171, 451209, 615285, 752015, 1353627, 1845855, 2256045, 4060881, 6768135, 20304405]

約数ペア:

[(1, 20304405), (3, 6768135), (5, 4060881), (9, 2256045), (11, 1845855), (15, 1353627), (27, 752015), (33, 615285), (45, 451209), (55, 369171), (99, 205095), (113, 179685), (121, 167805), (135, 150403), (165, 123057), (297, 68365), (339, 59895), (363, 55935), (495, 41019), (565, 35937), (605, 33561), (1017, 19965), (1089, 18645), (1243, 16335), (1331, 15255), (1485, 13673), (1695, 11979), (1815, 11187), (3051, 6655), (3267, 6215), (3729, 5445), (3993, 5085)]