171678980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{3109}}^1$

素因数の和:3380

約数の個数: 48

約数和(自身を含む): 394994880

約数和(自身を除く): 223315900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 502, 1004, 1255, 2510, 2761, 3109, 5020, 5522, 6218, 11044, 12436, 13805, 15545, 27610, 31090, 34199, 55220, 62180, 68398, 136796, 170995, 341990, 683980, 780359, 1560718, 3121436, 3901795, 7803590, 8583949, 15607180, 17167898, 34335796, 42919745, 85839490, 171678980]

約数ペア:

[(1, 171678980), (2, 85839490), (4, 42919745), (5, 34335796), (10, 17167898), (11, 15607180), (20, 8583949), (22, 7803590), (44, 3901795), (55, 3121436), (110, 1560718), (220, 780359), (251, 683980), (502, 341990), (1004, 170995), (1255, 136796), (2510, 68398), (2761, 62180), (3109, 55220), (5020, 34199), (5522, 31090), (6218, 27610), (11044, 15545), (12436, 13805)]