20538861240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{653}}^1\times {\mathrm{262109}}^1$

素因数の和:262776

約数の個数: 64

約数和(自身を含む): 61711178400

約数和(自身を除く): 41172317160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 653, 1306, 1959, 2612, 3265, 3918, 5224, 6530, 7836, 9795, 13060, 15672, 19590, 26120, 39180, 78360, 262109, 524218, 786327, 1048436, 1310545, 1572654, 2096872, 2621090, 3145308, 3931635, 5242180, 6290616, 7863270, 10484360, 15726540, 31453080, 171157177, 342314354, 513471531, 684628708, 855785885, 1026943062, 1369257416, 1711571770, 2053886124, 2567357655, 3423143540, 4107772248, 5134715310, 6846287080, 10269430620, 20538861240]

約数ペア:

[(1, 20538861240), (2, 10269430620), (3, 6846287080), (4, 5134715310), (5, 4107772248), (6, 3423143540), (8, 2567357655), (10, 2053886124), (12, 1711571770), (15, 1369257416), (20, 1026943062), (24, 855785885), (30, 684628708), (40, 513471531), (60, 342314354), (120, 171157177), (653, 31453080), (1306, 15726540), (1959, 10484360), (2612, 7863270), (3265, 6290616), (3918, 5242180), (5224, 3931635), (6530, 3145308), (7836, 2621090), (9795, 2096872), (13060, 1572654), (15672, 1310545), (19590, 1048436), (26120, 786327), (39180, 524218), (78360, 262109)]