1280497520

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{38201}}^1$

素因数の和:38633

約数の個数: 40

約数和(自身を含む): 2984340240

約数和(自身を除く): 1703842720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 838, 1676, 2095, 3352, 4190, 6704, 8380, 16760, 33520, 38201, 76402, 152804, 191005, 305608, 382010, 611216, 764020, 1528040, 3056080, 16006219, 32012438, 64024876, 80031095, 128049752, 160062190, 256099504, 320124380, 640248760, 1280497520]

約数ペア:

[(1, 1280497520), (2, 640248760), (4, 320124380), (5, 256099504), (8, 160062190), (10, 128049752), (16, 80031095), (20, 64024876), (40, 32012438), (80, 16006219), (419, 3056080), (838, 1528040), (1676, 764020), (2095, 611216), (3352, 382010), (4190, 305608), (6704, 191005), (8380, 152804), (16760, 76402), (33520, 38201)]