390139000

素因数分解:

$2^3\times 5^3\times {\mathrm{43}}^2\times {\mathrm{211}}^1$

素因数の和:318

約数の個数: 96

約数和(自身を含む): 939079440

約数和(自身を除く): 548940440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 125, 172, 200, 211, 215, 250, 344, 422, 430, 500, 844, 860, 1000, 1055, 1075, 1688, 1720, 1849, 2110, 2150, 3698, 4220, 4300, 5275, 5375, 7396, 8440, 8600, 9073, 9245, 10550, 10750, 14792, 18146, 18490, 21100, 21500, 26375, 36292, 36980, 42200, 43000, 45365, 46225, 52750, 72584, 73960, 90730, 92450, 105500, 181460, 184900, 211000, 226825, 231125, 362920, 369800, 390139, 453650, 462250, 780278, 907300, 924500, 1134125, 1560556, 1814600, 1849000, 1950695, 2268250, 3121112, 3901390, 4536500, 7802780, 9073000, 9753475, 15605560, 19506950, 39013900, 48767375, 78027800, 97534750, 195069500, 390139000]

約数ペア:

[(1, 390139000), (2, 195069500), (4, 97534750), (5, 78027800), (8, 48767375), (10, 39013900), (20, 19506950), (25, 15605560), (40, 9753475), (43, 9073000), (50, 7802780), (86, 4536500), (100, 3901390), (125, 3121112), (172, 2268250), (200, 1950695), (211, 1849000), (215, 1814600), (250, 1560556), (344, 1134125), (422, 924500), (430, 907300), (500, 780278), (844, 462250), (860, 453650), (1000, 390139), (1055, 369800), (1075, 362920), (1688, 231125), (1720, 226825), (1849, 211000), (2110, 184900), (2150, 181460), (3698, 105500), (4220, 92450), (4300, 90730), (5275, 73960), (5375, 72584), (7396, 52750), (8440, 46225), (8600, 45365), (9073, 43000), (9245, 42200), (10550, 36980), (10750, 36292), (14792, 26375), (18146, 21500), (18490, 21100)]