257821440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{67141}}^1$

素因数の和:67165

約数の個数: 72

約数和(自身を含む): 823429488

約数和(自身を除く): 565608048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 67141, 134282, 201423, 268564, 335705, 402846, 537128, 671410, 805692, 1007115, 1074256, 1342820, 1611384, 2014230, 2148512, 2685640, 3222768, 4028460, 4297024, 5371280, 6445536, 8056920, 8594048, 10742560, 12891072, 16113840, 17188096, 21485120, 25782144, 32227680, 42970240, 51564288, 64455360, 85940480, 128910720, 257821440]

約数ペア:

[(1, 257821440), (2, 128910720), (3, 85940480), (4, 64455360), (5, 51564288), (6, 42970240), (8, 32227680), (10, 25782144), (12, 21485120), (15, 17188096), (16, 16113840), (20, 12891072), (24, 10742560), (30, 8594048), (32, 8056920), (40, 6445536), (48, 5371280), (60, 4297024), (64, 4028460), (80, 3222768), (96, 2685640), (120, 2148512), (128, 2014230), (160, 1611384), (192, 1342820), (240, 1074256), (256, 1007115), (320, 805692), (384, 671410), (480, 537128), (640, 402846), (768, 335705), (960, 268564), (1280, 201423), (1920, 134282), (3840, 67141)]