428405000

素因数分解:

$2^3\times 5^4\times {\mathrm{47}}^1\times {\mathrm{1823}}^1$

素因数の和:1896

約数の個数: 80

約数和(自身を含む): 1025671680

約数和(自身を除く): 597266680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 125, 188, 200, 235, 250, 376, 470, 500, 625, 940, 1000, 1175, 1250, 1823, 1880, 2350, 2500, 3646, 4700, 5000, 5875, 7292, 9115, 9400, 11750, 14584, 18230, 23500, 29375, 36460, 45575, 47000, 58750, 72920, 85681, 91150, 117500, 171362, 182300, 227875, 235000, 342724, 364600, 428405, 455750, 685448, 856810, 911500, 1139375, 1713620, 1823000, 2142025, 2278750, 3427240, 4284050, 4557500, 8568100, 9115000, 10710125, 17136200, 21420250, 42840500, 53550625, 85681000, 107101250, 214202500, 428405000]

約数ペア:

[(1, 428405000), (2, 214202500), (4, 107101250), (5, 85681000), (8, 53550625), (10, 42840500), (20, 21420250), (25, 17136200), (40, 10710125), (47, 9115000), (50, 8568100), (94, 4557500), (100, 4284050), (125, 3427240), (188, 2278750), (200, 2142025), (235, 1823000), (250, 1713620), (376, 1139375), (470, 911500), (500, 856810), (625, 685448), (940, 455750), (1000, 428405), (1175, 364600), (1250, 342724), (1823, 235000), (1880, 227875), (2350, 182300), (2500, 171362), (3646, 117500), (4700, 91150), (5000, 85681), (5875, 72920), (7292, 58750), (9115, 47000), (9400, 45575), (11750, 36460), (14584, 29375), (18230, 23500)]