19349720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 28066600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 254, 260, 293, 508, 520, 586, 635, 1016, 1172, 1270, 1465, 1651, 2344, 2540, 2930, 3302, 3809, 5080, 5860, 6604, 7618, 8255, 11720, 13208, 15236, 16510, 19045, 30472, 33020, 37211, 38090, 66040, 74422, 76180, 148844, 152360, 186055, 297688, 372110, 483743, 744220, 967486, 1488440, 1934972, 2418715, 3869944, 4837430, 9674860, 19349720]

約数ペア:

[(1, 19349720), (2, 9674860), (4, 4837430), (5, 3869944), (8, 2418715), (10, 1934972), (13, 1488440), (20, 967486), (26, 744220), (40, 483743), (52, 372110), (65, 297688), (104, 186055), (127, 152360), (130, 148844), (254, 76180), (260, 74422), (293, 66040), (508, 38090), (520, 37211), (586, 33020), (635, 30472), (1016, 19045), (1172, 16510), (1270, 15236), (1465, 13208), (1651, 11720), (2344, 8255), (2540, 7618), (2930, 6604), (3302, 5860), (3809, 5080)]