1640291330

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:939

約数の個数: 64

約数和(自身を含む): 3145824000

約数和(自身を除く): 1505532670

約数列:

[1, 2, 5, 10, 29, 43, 58, 86, 145, 199, 215, 290, 398, 430, 661, 995, 1247, 1322, 1990, 2494, 3305, 5771, 6235, 6610, 8557, 11542, 12470, 17114, 19169, 28423, 28855, 38338, 42785, 56846, 57710, 85570, 95845, 131539, 142115, 191690, 248153, 263078, 284230, 496306, 657695, 824267, 1240765, 1315390, 1648534, 2481530, 3814631, 4121335, 5656177, 7629262, 8242670, 11312354, 19073155, 28280885, 38146310, 56561770, 164029133, 328058266, 820145665, 1640291330]

約数ペア:

[(1, 1640291330), (2, 820145665), (5, 328058266), (10, 164029133), (29, 56561770), (43, 38146310), (58, 28280885), (86, 19073155), (145, 11312354), (199, 8242670), (215, 7629262), (290, 5656177), (398, 4121335), (430, 3814631), (661, 2481530), (995, 1648534), (1247, 1315390), (1322, 1240765), (1990, 824267), (2494, 657695), (3305, 496306), (5771, 284230), (6235, 263078), (6610, 248153), (8557, 191690), (11542, 142115), (12470, 131539), (17114, 95845), (19169, 85570), (28423, 57710), (28855, 56846), (38338, 42785)]