20304515

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2293}}^1$

素因数の和:2339

約数の個数: 32

約数和(自身を含む): 31712256

約数和(自身を除く): 11407741

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 2293, 8855, 11465, 16051, 25223, 52739, 80255, 126115, 176561, 263695, 369173, 580129, 882805, 1845865, 2900645, 4060903, 20304515]

約数ペア:

[(1, 20304515), (5, 4060903), (7, 2900645), (11, 1845865), (23, 882805), (35, 580129), (55, 369173), (77, 263695), (115, 176561), (161, 126115), (253, 80255), (385, 52739), (805, 25223), (1265, 16051), (1771, 11465), (2293, 8855)]