19648420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 48254976

約数和(自身を除く): 28606556

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 43, 44, 55, 62, 67, 86, 110, 124, 134, 155, 172, 215, 220, 268, 310, 335, 341, 430, 473, 620, 670, 682, 737, 860, 946, 1333, 1340, 1364, 1474, 1705, 1892, 2077, 2365, 2666, 2881, 2948, 3410, 3685, 4154, 4730, 5332, 5762, 6665, 6820, 7370, 8308, 9460, 10385, 11524, 13330, 14405, 14663, 14740, 20770, 22847, 26660, 28810, 29326, 31691, 41540, 45694, 57620, 58652, 63382, 73315, 89311, 91388, 114235, 126764, 146630, 158455, 178622, 228470, 293260, 316910, 357244, 446555, 456940, 633820, 893110, 982421, 1786220, 1964842, 3929684, 4912105, 9824210, 19648420]

約数ペア:

[(1, 19648420), (2, 9824210), (4, 4912105), (5, 3929684), (10, 1964842), (11, 1786220), (20, 982421), (22, 893110), (31, 633820), (43, 456940), (44, 446555), (55, 357244), (62, 316910), (67, 293260), (86, 228470), (110, 178622), (124, 158455), (134, 146630), (155, 126764), (172, 114235), (215, 91388), (220, 89311), (268, 73315), (310, 63382), (335, 58652), (341, 57620), (430, 45694), (473, 41540), (620, 31691), (670, 29326), (682, 28810), (737, 26660), (860, 22847), (946, 20770), (1333, 14740), (1340, 14663), (1364, 14405), (1474, 13330), (1705, 11524), (1892, 10385), (2077, 9460), (2365, 8308), (2666, 7370), (2881, 6820), (2948, 6665), (3410, 5762), (3685, 5332), (4154, 4730)]