20775776

素因数分解:

$2^5\times 7^1\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:831

約数の個数: 48

約数和(自身を含む): 47156256

約数和(自身を除く): 26380480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 137, 224, 274, 548, 677, 959, 1096, 1354, 1918, 2192, 2708, 3836, 4384, 4739, 5416, 7672, 9478, 10832, 15344, 18956, 21664, 30688, 37912, 75824, 92749, 151648, 185498, 370996, 649243, 741992, 1298486, 1483984, 2596972, 2967968, 5193944, 10387888, 20775776]

約数ペア:

[(1, 20775776), (2, 10387888), (4, 5193944), (7, 2967968), (8, 2596972), (14, 1483984), (16, 1298486), (28, 741992), (32, 649243), (56, 370996), (112, 185498), (137, 151648), (224, 92749), (274, 75824), (548, 37912), (677, 30688), (959, 21664), (1096, 18956), (1354, 15344), (1918, 10832), (2192, 9478), (2708, 7672), (3836, 5416), (4384, 4739)]