199903210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 400982400

約数和(自身を除く): 201079190

約数列:

[1, 2, 5, 10, 13, 26, 59, 65, 67, 118, 130, 134, 295, 335, 389, 590, 670, 767, 778, 871, 1534, 1742, 1945, 3835, 3890, 3953, 4355, 5057, 7670, 7906, 8710, 10114, 19765, 22951, 25285, 26063, 39530, 45902, 50570, 51389, 52126, 102778, 114755, 130315, 229510, 256945, 260630, 298363, 338819, 513890, 596726, 677638, 1491815, 1537717, 1694095, 2983630, 3075434, 3388190, 7688585, 15377170, 19990321, 39980642, 99951605, 199903210]

約数ペア:

[(1, 199903210), (2, 99951605), (5, 39980642), (10, 19990321), (13, 15377170), (26, 7688585), (59, 3388190), (65, 3075434), (67, 2983630), (118, 1694095), (130, 1537717), (134, 1491815), (295, 677638), (335, 596726), (389, 513890), (590, 338819), (670, 298363), (767, 260630), (778, 256945), (871, 229510), (1534, 130315), (1742, 114755), (1945, 102778), (3835, 52126), (3890, 51389), (3953, 50570), (4355, 45902), (5057, 39530), (7670, 26063), (7906, 25285), (8710, 22951), (10114, 19765)]