16910980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 37537920

約数和(自身を除く): 20626940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 97, 115, 194, 230, 379, 388, 460, 485, 758, 970, 1516, 1895, 1940, 2231, 3790, 4462, 7580, 8717, 8924, 11155, 17434, 22310, 34868, 36763, 43585, 44620, 73526, 87170, 147052, 174340, 183815, 367630, 735260, 845549, 1691098, 3382196, 4227745, 8455490, 16910980]

約数ペア:

[(1, 16910980), (2, 8455490), (4, 4227745), (5, 3382196), (10, 1691098), (20, 845549), (23, 735260), (46, 367630), (92, 183815), (97, 174340), (115, 147052), (194, 87170), (230, 73526), (379, 44620), (388, 43585), (460, 36763), (485, 34868), (758, 22310), (970, 17434), (1516, 11155), (1895, 8924), (1940, 8717), (2231, 7580), (3790, 4462)]