209216560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{547}}^1\times {\mathrm{683}}^1$

素因数の和:1250

約数の個数: 80

約数和(自身を含む): 557750016

約数和(自身を除く): 348533456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 547, 560, 683, 1094, 1366, 2188, 2732, 2735, 3415, 3829, 4376, 4781, 5464, 5470, 6830, 7658, 8752, 9562, 10928, 10940, 13660, 15316, 19124, 19145, 21880, 23905, 27320, 30632, 38248, 38290, 43760, 47810, 54640, 61264, 76496, 76580, 95620, 153160, 191240, 306320, 373601, 382480, 747202, 1494404, 1868005, 2615207, 2988808, 3736010, 5230414, 5977616, 7472020, 10460828, 13076035, 14944040, 20921656, 26152070, 29888080, 41843312, 52304140, 104608280, 209216560]

約数ペア:

[(1, 209216560), (2, 104608280), (4, 52304140), (5, 41843312), (7, 29888080), (8, 26152070), (10, 20921656), (14, 14944040), (16, 13076035), (20, 10460828), (28, 7472020), (35, 5977616), (40, 5230414), (56, 3736010), (70, 2988808), (80, 2615207), (112, 1868005), (140, 1494404), (280, 747202), (547, 382480), (560, 373601), (683, 306320), (1094, 191240), (1366, 153160), (2188, 95620), (2732, 76580), (2735, 76496), (3415, 61264), (3829, 54640), (4376, 47810), (4781, 43760), (5464, 38290), (5470, 38248), (6830, 30632), (7658, 27320), (8752, 23905), (9562, 21880), (10928, 19145), (10940, 19124), (13660, 15316)]