20174722988

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{73009}}^1$

素因数の和:73230

約数の個数: 48

約数和(自身を含む): 41212684800

約数和(自身を除く): 21037961812

約数列:

[1, 2, 4, 7, 14, 28, 71, 139, 142, 278, 284, 497, 556, 973, 994, 1946, 1988, 3892, 9869, 19738, 39476, 69083, 73009, 138166, 146018, 276332, 292036, 511063, 1022126, 2044252, 5183639, 10148251, 10367278, 20296502, 20734556, 36285473, 40593004, 71037757, 72570946, 142075514, 145141892, 284151028, 720525821, 1441051642, 2882103284, 5043680747, 10087361494, 20174722988]

約数ペア:

[(1, 20174722988), (2, 10087361494), (4, 5043680747), (7, 2882103284), (14, 1441051642), (28, 720525821), (71, 284151028), (139, 145141892), (142, 142075514), (278, 72570946), (284, 71037757), (497, 40593004), (556, 36285473), (973, 20734556), (994, 20296502), (1946, 10367278), (1988, 10148251), (3892, 5183639), (9869, 2044252), (19738, 1022126), (39476, 511063), (69083, 292036), (73009, 276332), (138166, 146018)]