2015564840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{12569}}^1$

素因数の和:12810

約数の個数: 64

約数和(自身を含む): 4796712000

約数和(自身を除く): 2781147160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 211, 380, 422, 760, 844, 1055, 1688, 2110, 4009, 4220, 8018, 8440, 12569, 16036, 20045, 25138, 32072, 40090, 50276, 62845, 80180, 100552, 125690, 160360, 238811, 251380, 477622, 502760, 955244, 1194055, 1910488, 2388110, 2652059, 4776220, 5304118, 9552440, 10608236, 13260295, 21216472, 26520590, 50389121, 53041180, 100778242, 106082360, 201556484, 251945605, 403112968, 503891210, 1007782420, 2015564840]

約数ペア:

[(1, 2015564840), (2, 1007782420), (4, 503891210), (5, 403112968), (8, 251945605), (10, 201556484), (19, 106082360), (20, 100778242), (38, 53041180), (40, 50389121), (76, 26520590), (95, 21216472), (152, 13260295), (190, 10608236), (211, 9552440), (380, 5304118), (422, 4776220), (760, 2652059), (844, 2388110), (1055, 1910488), (1688, 1194055), (2110, 955244), (4009, 502760), (4220, 477622), (8018, 251380), (8440, 238811), (12569, 160360), (16036, 125690), (20045, 100552), (25138, 80180), (32072, 62845), (40090, 50276)]