19980459824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{10853}}^1$

素因数の和:11094

約数の個数: 80

約数和(自身を含む): 42734889792

約数和(自身を除く): 22754429968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 167, 208, 212, 334, 424, 668, 689, 848, 1336, 1378, 2171, 2672, 2756, 4342, 5512, 8684, 8851, 10853, 11024, 17368, 17702, 21706, 34736, 35404, 43412, 70808, 86824, 115063, 141089, 141616, 173648, 230126, 282178, 460252, 564356, 575209, 920504, 1128712, 1150418, 1812451, 1841008, 2257424, 2300836, 3624902, 4601672, 7249804, 7477717, 9203344, 14499608, 14955434, 23561863, 28999216, 29910868, 47123726, 59821736, 94247452, 96059903, 119643472, 188494904, 192119806, 376989808, 384239612, 768479224, 1248778739, 1536958448, 2497557478, 4995114956, 9990229912, 19980459824]

約数ペア:

[(1, 19980459824), (2, 9990229912), (4, 4995114956), (8, 2497557478), (13, 1536958448), (16, 1248778739), (26, 768479224), (52, 384239612), (53, 376989808), (104, 192119806), (106, 188494904), (167, 119643472), (208, 96059903), (212, 94247452), (334, 59821736), (424, 47123726), (668, 29910868), (689, 28999216), (848, 23561863), (1336, 14955434), (1378, 14499608), (2171, 9203344), (2672, 7477717), (2756, 7249804), (4342, 4601672), (5512, 3624902), (8684, 2300836), (8851, 2257424), (10853, 1841008), (11024, 1812451), (17368, 1150418), (17702, 1128712), (21706, 920504), (34736, 575209), (35404, 564356), (43412, 460252), (70808, 282178), (86824, 230126), (115063, 173648), (141089, 141616)]