19967450

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 19405030

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 97, 115, 179, 194, 230, 358, 485, 575, 895, 970, 1150, 1790, 2231, 2425, 4117, 4462, 4475, 4850, 8234, 8950, 11155, 17363, 20585, 22310, 34726, 41170, 55775, 86815, 102925, 111550, 173630, 205850, 399349, 434075, 798698, 868150, 1996745, 3993490, 9983725, 19967450]

約数ペア:

[(1, 19967450), (2, 9983725), (5, 3993490), (10, 1996745), (23, 868150), (25, 798698), (46, 434075), (50, 399349), (97, 205850), (115, 173630), (179, 111550), (194, 102925), (230, 86815), (358, 55775), (485, 41170), (575, 34726), (895, 22310), (970, 20585), (1150, 17363), (1790, 11155), (2231, 8950), (2425, 8234), (4117, 4850), (4462, 4475)]