1900385560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{11699}}^1$

素因数の和:11872

約数の個数: 64

約数和(自身を含む): 4447872000

約数和(自身を除く): 2547486440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 1048, 1240, 1310, 2620, 4061, 5240, 8122, 11699, 16244, 20305, 23398, 32488, 40610, 46796, 58495, 81220, 93592, 116990, 162440, 233980, 362669, 467960, 725338, 1450676, 1532569, 1813345, 2901352, 3065138, 3626690, 6130276, 7253380, 7662845, 12260552, 14506760, 15325690, 30651380, 47509639, 61302760, 95019278, 190038556, 237548195, 380077112, 475096390, 950192780, 1900385560]

約数ペア:

[(1, 1900385560), (2, 950192780), (4, 475096390), (5, 380077112), (8, 237548195), (10, 190038556), (20, 95019278), (31, 61302760), (40, 47509639), (62, 30651380), (124, 15325690), (131, 14506760), (155, 12260552), (248, 7662845), (262, 7253380), (310, 6130276), (524, 3626690), (620, 3065138), (655, 2901352), (1048, 1813345), (1240, 1532569), (1310, 1450676), (2620, 725338), (4061, 467960), (5240, 362669), (8122, 233980), (11699, 162440), (16244, 116990), (20305, 93592), (23398, 81220), (32488, 58495), (40610, 46796)]