20561251152

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{2534671}}^1$

素因数の和:2534708

約数の個数: 60

約数和(自身を含む): 57516777024

約数和(自身を除く): 36955525872

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 169, 208, 312, 338, 507, 624, 676, 1014, 1352, 2028, 2704, 4056, 8112, 2534671, 5069342, 7604013, 10138684, 15208026, 20277368, 30416052, 32950723, 40554736, 60832104, 65901446, 98852169, 121664208, 131802892, 197704338, 263605784, 395408676, 428359399, 527211568, 790817352, 856718798, 1285078197, 1581634704, 1713437596, 2570156394, 3426875192, 5140312788, 6853750384, 10280625576, 20561251152]

約数ペア:

[(1, 20561251152), (2, 10280625576), (3, 6853750384), (4, 5140312788), (6, 3426875192), (8, 2570156394), (12, 1713437596), (13, 1581634704), (16, 1285078197), (24, 856718798), (26, 790817352), (39, 527211568), (48, 428359399), (52, 395408676), (78, 263605784), (104, 197704338), (156, 131802892), (169, 121664208), (208, 98852169), (312, 65901446), (338, 60832104), (507, 40554736), (624, 32950723), (676, 30416052), (1014, 20277368), (1352, 15208026), (2028, 10138684), (2704, 7604013), (4056, 5069342), (8112, 2534671)]