1995156920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{6389}}^1$

素因数の和:6648

約数の個数: 64

約数和(自身を含む): 4633005600

約数和(自身を除く): 2637848680

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 211, 296, 370, 422, 740, 844, 1055, 1480, 1688, 2110, 4220, 6389, 7807, 8440, 12778, 15614, 25556, 31228, 31945, 39035, 51112, 62456, 63890, 78070, 127780, 156140, 236393, 255560, 312280, 472786, 945572, 1181965, 1348079, 1891144, 2363930, 2696158, 4727860, 5392316, 6740395, 9455720, 10784632, 13480790, 26961580, 49878923, 53923160, 99757846, 199515692, 249394615, 399031384, 498789230, 997578460, 1995156920]

約数ペア:

[(1, 1995156920), (2, 997578460), (4, 498789230), (5, 399031384), (8, 249394615), (10, 199515692), (20, 99757846), (37, 53923160), (40, 49878923), (74, 26961580), (148, 13480790), (185, 10784632), (211, 9455720), (296, 6740395), (370, 5392316), (422, 4727860), (740, 2696158), (844, 2363930), (1055, 1891144), (1480, 1348079), (1688, 1181965), (2110, 945572), (4220, 472786), (6389, 312280), (7807, 255560), (8440, 236393), (12778, 156140), (15614, 127780), (25556, 78070), (31228, 63890), (31945, 62456), (39035, 51112)]