1891976528

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{478739}}^1$

素因数の和:478779

約数の個数: 40

約数和(自身を含む): 4155463200

約数和(自身を除く): 2263486672

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 478739, 957478, 1914956, 3829912, 6223607, 7659824, 9096041, 12447214, 18192082, 24894428, 36384164, 49788856, 72768328, 99577712, 118248533, 145536656, 236497066, 472994132, 945988264, 1891976528]

約数ペア:

[(1, 1891976528), (2, 945988264), (4, 472994132), (8, 236497066), (13, 145536656), (16, 118248533), (19, 99577712), (26, 72768328), (38, 49788856), (52, 36384164), (76, 24894428), (104, 18192082), (152, 12447214), (208, 9096041), (247, 7659824), (304, 6223607), (494, 3829912), (988, 1914956), (1976, 957478), (3952, 478739)]