219127220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{877}}^1$

素因数の和:961

約数の個数: 72

約数和(自身を含む): 512650152

約数和(自身を除く): 293522932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 877, 961, 1612, 1754, 1922, 2015, 3508, 3844, 4030, 4385, 4805, 8060, 8770, 9610, 11401, 12493, 17540, 19220, 22802, 24986, 27187, 45604, 49972, 54374, 57005, 62465, 108748, 114010, 124930, 135935, 228020, 249860, 271870, 353431, 543740, 706862, 842797, 1413724, 1685594, 1767155, 3371188, 3534310, 4213985, 7068620, 8427970, 10956361, 16855940, 21912722, 43825444, 54781805, 109563610, 219127220]

約数ペア:

[(1, 219127220), (2, 109563610), (4, 54781805), (5, 43825444), (10, 21912722), (13, 16855940), (20, 10956361), (26, 8427970), (31, 7068620), (52, 4213985), (62, 3534310), (65, 3371188), (124, 1767155), (130, 1685594), (155, 1413724), (260, 842797), (310, 706862), (403, 543740), (620, 353431), (806, 271870), (877, 249860), (961, 228020), (1612, 135935), (1754, 124930), (1922, 114010), (2015, 108748), (3508, 62465), (3844, 57005), (4030, 54374), (4385, 49972), (4805, 45604), (8060, 27187), (8770, 24986), (9610, 22802), (11401, 19220), (12493, 17540)]