447440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:84

約数の個数: 80

約数和(自身を含む): 1285632

約数和(自身を除く): 838192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 47, 56, 68, 70, 80, 85, 94, 112, 119, 136, 140, 170, 188, 235, 238, 272, 280, 329, 340, 376, 470, 476, 560, 595, 658, 680, 752, 799, 940, 952, 1190, 1316, 1360, 1598, 1645, 1880, 1904, 2380, 2632, 3196, 3290, 3760, 3995, 4760, 5264, 5593, 6392, 6580, 7990, 9520, 11186, 12784, 13160, 15980, 22372, 26320, 27965, 31960, 44744, 55930, 63920, 89488, 111860, 223720, 447440]

約数ペア:

[(1, 447440), (2, 223720), (4, 111860), (5, 89488), (7, 63920), (8, 55930), (10, 44744), (14, 31960), (16, 27965), (17, 26320), (20, 22372), (28, 15980), (34, 13160), (35, 12784), (40, 11186), (47, 9520), (56, 7990), (68, 6580), (70, 6392), (80, 5593), (85, 5264), (94, 4760), (112, 3995), (119, 3760), (136, 3290), (140, 3196), (170, 2632), (188, 2380), (235, 1904), (238, 1880), (272, 1645), (280, 1598), (329, 1360), (340, 1316), (376, 1190), (470, 952), (476, 940), (560, 799), (595, 752), (658, 680)]