18990464

素因数分解:

$2^7\times {\mathrm{89}}^1\times {\mathrm{1667}}^1$

素因数の和:1770

約数の個数: 32

約数和(自身を含む): 38280600

約数和(自身を除く): 19290136

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 356, 712, 1424, 1667, 2848, 3334, 5696, 6668, 11392, 13336, 26672, 53344, 106688, 148363, 213376, 296726, 593452, 1186904, 2373808, 4747616, 9495232, 18990464]

約数ペア:

[(1, 18990464), (2, 9495232), (4, 4747616), (8, 2373808), (16, 1186904), (32, 593452), (64, 296726), (89, 213376), (128, 148363), (178, 106688), (356, 53344), (712, 26672), (1424, 13336), (1667, 11392), (2848, 6668), (3334, 5696)]