90191860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21577}}^1$

素因数の和:21616

約数の個数: 48

約数和(自身を含む): 217506240

約数和(自身を除く): 127314380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 21577, 43154, 86308, 107885, 215770, 237347, 409963, 431540, 474694, 819926, 949388, 1186735, 1639852, 2049815, 2373470, 4099630, 4509593, 4746940, 8199260, 9019186, 18038372, 22547965, 45095930, 90191860]

約数ペア:

[(1, 90191860), (2, 45095930), (4, 22547965), (5, 18038372), (10, 9019186), (11, 8199260), (19, 4746940), (20, 4509593), (22, 4099630), (38, 2373470), (44, 2049815), (55, 1639852), (76, 1186735), (95, 949388), (110, 819926), (190, 474694), (209, 431540), (220, 409963), (380, 237347), (418, 215770), (836, 107885), (1045, 86308), (2090, 43154), (4180, 21577)]