165720080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{121853}}^1$

素因数の和:121883

約数の個数: 40

約数和(自身を含む): 407967192

約数和(自身を除く): 242247112

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 121853, 243706, 487412, 609265, 974824, 1218530, 1949648, 2071501, 2437060, 4143002, 4874120, 8286004, 9748240, 10357505, 16572008, 20715010, 33144016, 41430020, 82860040, 165720080]

約数ペア:

[(1, 165720080), (2, 82860040), (4, 41430020), (5, 33144016), (8, 20715010), (10, 16572008), (16, 10357505), (17, 9748240), (20, 8286004), (34, 4874120), (40, 4143002), (68, 2437060), (80, 2071501), (85, 1949648), (136, 1218530), (170, 974824), (272, 609265), (340, 487412), (680, 243706), (1360, 121853)]