206821720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12109}}^1$

素因数の和:12188

約数の個数: 64

約数和(自身を含む): 540590400

約数和(自身を除く): 333768680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2440, 3416, 4270, 8540, 12109, 17080, 24218, 48436, 60545, 84763, 96872, 121090, 169526, 242180, 339052, 423815, 484360, 678104, 738649, 847630, 1477298, 1695260, 2954596, 3390520, 3693245, 5170543, 5909192, 7386490, 10341086, 14772980, 20682172, 25852715, 29545960, 41364344, 51705430, 103410860, 206821720]

約数ペア:

[(1, 206821720), (2, 103410860), (4, 51705430), (5, 41364344), (7, 29545960), (8, 25852715), (10, 20682172), (14, 14772980), (20, 10341086), (28, 7386490), (35, 5909192), (40, 5170543), (56, 3693245), (61, 3390520), (70, 2954596), (122, 1695260), (140, 1477298), (244, 847630), (280, 738649), (305, 678104), (427, 484360), (488, 423815), (610, 339052), (854, 242180), (1220, 169526), (1708, 121090), (2135, 96872), (2440, 84763), (3416, 60545), (4270, 48436), (8540, 24218), (12109, 17080)]