20389624620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{653}}^1\times {\mathrm{520409}}^1$

素因数の和:521074

約数の個数: 48

約数和(自身を含む): 57178487520

約数和(自身を除く): 36788862900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 653, 1306, 1959, 2612, 3265, 3918, 6530, 7836, 9795, 13060, 19590, 39180, 520409, 1040818, 1561227, 2081636, 2602045, 3122454, 5204090, 6244908, 7806135, 10408180, 15612270, 31224540, 339827077, 679654154, 1019481231, 1359308308, 1699135385, 2038962462, 3398270770, 4077924924, 5097406155, 6796541540, 10194812310, 20389624620]

約数ペア:

[(1, 20389624620), (2, 10194812310), (3, 6796541540), (4, 5097406155), (5, 4077924924), (6, 3398270770), (10, 2038962462), (12, 1699135385), (15, 1359308308), (20, 1019481231), (30, 679654154), (60, 339827077), (653, 31224540), (1306, 15612270), (1959, 10408180), (2612, 7806135), (3265, 6244908), (3918, 5204090), (6530, 3122454), (7836, 2602045), (9795, 2081636), (13060, 1561227), (19590, 1040818), (39180, 520409)]