281558940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{360973}}^1$

素因数の和:360998

約数の個数: 48

約数和(自身を含む): 849010848

約数和(自身を除く): 567451908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 360973, 721946, 1082919, 1443892, 1804865, 2165838, 3609730, 4331676, 4692649, 5414595, 7219460, 9385298, 10829190, 14077947, 18770596, 21658380, 23463245, 28155894, 46926490, 56311788, 70389735, 93852980, 140779470, 281558940]

約数ペア:

[(1, 281558940), (2, 140779470), (3, 93852980), (4, 70389735), (5, 56311788), (6, 46926490), (10, 28155894), (12, 23463245), (13, 21658380), (15, 18770596), (20, 14077947), (26, 10829190), (30, 9385298), (39, 7219460), (52, 5414595), (60, 4692649), (65, 4331676), (78, 3609730), (130, 2165838), (156, 1804865), (195, 1443892), (260, 1082919), (390, 721946), (780, 360973)]