639778932

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{455683}}^1$

素因数の和:455709

約数の個数: 48

約数和(自身を含む): 1786281280

約数和(自身を除く): 1146502348

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 455683, 911366, 1367049, 1822732, 2734098, 4101147, 5468196, 5923879, 8202294, 11847758, 12303441, 16404588, 17771637, 23695516, 24606882, 35543274, 49213764, 53314911, 71086548, 106629822, 159944733, 213259644, 319889466, 639778932]

約数ペア:

[(1, 639778932), (2, 319889466), (3, 213259644), (4, 159944733), (6, 106629822), (9, 71086548), (12, 53314911), (13, 49213764), (18, 35543274), (26, 24606882), (27, 23695516), (36, 17771637), (39, 16404588), (52, 12303441), (54, 11847758), (78, 8202294), (108, 5923879), (117, 5468196), (156, 4101147), (234, 2734098), (351, 1822732), (468, 1367049), (702, 911366), (1404, 455683)]