165239420

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1\times {\mathrm{389}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 354201120

約数和(自身を除く): 188961700

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 317, 335, 389, 634, 670, 778, 1268, 1340, 1556, 1585, 1945, 3170, 3890, 6340, 7780, 21239, 26063, 42478, 52126, 84956, 104252, 106195, 123313, 130315, 212390, 246626, 260630, 424780, 493252, 521260, 616565, 1233130, 2466260, 8261971, 16523942, 33047884, 41309855, 82619710, 165239420]

約数ペア:

[(1, 165239420), (2, 82619710), (4, 41309855), (5, 33047884), (10, 16523942), (20, 8261971), (67, 2466260), (134, 1233130), (268, 616565), (317, 521260), (335, 493252), (389, 424780), (634, 260630), (670, 246626), (778, 212390), (1268, 130315), (1340, 123313), (1556, 106195), (1585, 104252), (1945, 84956), (3170, 52126), (3890, 42478), (6340, 26063), (7780, 21239)]