20389096

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4001}}^1$

素因数の和:4034

約数の個数: 48

約数和(自身を含む): 47903940

約数和(自身を除く): 27514844

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4001, 5096, 8002, 16004, 28007, 32008, 52013, 56014, 104026, 112028, 196049, 208052, 224056, 364091, 392098, 416104, 728182, 784196, 1456364, 1568392, 2548637, 2912728, 5097274, 10194548, 20389096]

約数ペア:

[(1, 20389096), (2, 10194548), (4, 5097274), (7, 2912728), (8, 2548637), (13, 1568392), (14, 1456364), (26, 784196), (28, 728182), (49, 416104), (52, 392098), (56, 364091), (91, 224056), (98, 208052), (104, 196049), (182, 112028), (196, 104026), (364, 56014), (392, 52013), (637, 32008), (728, 28007), (1274, 16004), (2548, 8002), (4001, 5096)]