204400280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{823}}^1\times {\mathrm{887}}^1$

素因数の和:1728

約数の個数: 64

約数和(自身を含む): 526832640

約数和(自身を除く): 322432360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 823, 887, 1646, 1774, 3292, 3548, 4115, 4435, 5761, 6209, 6584, 7096, 8230, 8870, 11522, 12418, 16460, 17740, 23044, 24836, 28805, 31045, 32920, 35480, 46088, 49672, 57610, 62090, 115220, 124180, 230440, 248360, 730001, 1460002, 2920004, 3650005, 5110007, 5840008, 7300010, 10220014, 14600020, 20440028, 25550035, 29200040, 40880056, 51100070, 102200140, 204400280]

約数ペア:

[(1, 204400280), (2, 102200140), (4, 51100070), (5, 40880056), (7, 29200040), (8, 25550035), (10, 20440028), (14, 14600020), (20, 10220014), (28, 7300010), (35, 5840008), (40, 5110007), (56, 3650005), (70, 2920004), (140, 1460002), (280, 730001), (823, 248360), (887, 230440), (1646, 124180), (1774, 115220), (3292, 62090), (3548, 57610), (4115, 49672), (4435, 46088), (5761, 35480), (6209, 32920), (6584, 31045), (7096, 28805), (8230, 24836), (8870, 23044), (11522, 17740), (12418, 16460)]