72891920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53597}}^1$

素因数の和:53627

約数の個数: 40

約数和(自身を含む): 179446104

約数和(自身を除く): 106554184

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 53597, 107194, 214388, 267985, 428776, 535970, 857552, 911149, 1071940, 1822298, 2143880, 3644596, 4287760, 4555745, 7289192, 9111490, 14578384, 18222980, 36445960, 72891920]

約数ペア:

[(1, 72891920), (2, 36445960), (4, 18222980), (5, 14578384), (8, 9111490), (10, 7289192), (16, 4555745), (17, 4287760), (20, 3644596), (34, 2143880), (40, 1822298), (68, 1071940), (80, 911149), (85, 857552), (136, 535970), (170, 428776), (272, 267985), (340, 214388), (680, 107194), (1360, 53597)]