20181824

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:343

約数の個数: 56

約数和(自身を含む): 43696128

約数和(自身を除く): 23514304

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 127, 191, 208, 254, 382, 416, 508, 764, 832, 1016, 1528, 1651, 2032, 2483, 3056, 3302, 4064, 4966, 6112, 6604, 8128, 9932, 12224, 13208, 19864, 24257, 26416, 39728, 48514, 52832, 79456, 97028, 105664, 158912, 194056, 315341, 388112, 630682, 776224, 1261364, 1552448, 2522728, 5045456, 10090912, 20181824]

約数ペア:

[(1, 20181824), (2, 10090912), (4, 5045456), (8, 2522728), (13, 1552448), (16, 1261364), (26, 776224), (32, 630682), (52, 388112), (64, 315341), (104, 194056), (127, 158912), (191, 105664), (208, 97028), (254, 79456), (382, 52832), (416, 48514), (508, 39728), (764, 26416), (832, 24257), (1016, 19864), (1528, 13208), (1651, 12224), (2032, 9932), (2483, 8128), (3056, 6604), (3302, 6112), (4064, 4966)]